I never got baptized
The anointing does not occur before baptism. This pattern was set by Christ at his baptism.
Did they go to the bathroom in the park? (If all they ate was fruit they would have to go a lot.) Where did they sleep? On the ground next to the lions? Did it ever rain or snow? would there be no meat, since there would be no killing or dying? Where would the babies be born if there were no hospitals since nobody got sick or died?
These were the kinds of questions that got me in trouble. And I never got good answers, even though I kept on asking and kept getting in trouble. I was told to trust that Jehovah would take care of everything.
I don't understand why you were not given answers. I am wondering if you were so young your parents and your brothers thought you were too young to understand or for some reason chose not to more fully explain things. The answer you've related to me seem to be answers some might tell a young child. Maybe they preferred you to learn more directly from the Kingdom Hall. I don't know, but there are answers to your questions.
"And they shall build houses, and inhabit them; and they shall plant vineyards, and eat the fruit of them.
22They shall not build, and another inhabit; they shall not plant, and another eat: for as the days of a tree shall be the days of my people, and my chosen shall long enjoy the work of their hands.
23They shall not labor in vain, nor bring forth for calamity; for they are the seed of the blessed of Jehovah, and their offspring with them
24And it shall come to pass that, before they call, I will answer; and while they are yet speaking, I will hear. (Isaiah 65:21-24)
Obviously there are going to be structures and even technology. Humans have an inborn tendancy to want learn and create. We even find enjoyment in satisfying
work. Jehovah is not going to deprive us of these things and he did not create the entire universe for nothing, nor are any of the earth's resources withheld from us. There is no reason to believe people will become primitive again. But we will work for different goals. No longer will life be about mere survival, money, and competition.
Imagine a world where science is only used for good. Imagine a world where talent is not lost because the talented are too poor, or are of the wrong race, to participate. Imagine a world that does not have to support a military. Imagine a world where people don't compete but work together. Imagine a world where certain technologies are not withheld because it would hurt the economy. The guilt of mankind lies in the fact that we are already capable of creating a world like that, but don't. All we have to do is the right thing. But we will never acheive it as long as there are so many that just want to dominate their fellow man. That is the downfall of mankind. It's the desire to have power over others. Leadership is good and even necessary, but leadership is not domination. Plus there are those that wouldn't follow a good leader if they had one.
Would the park ever fill up with people as they had babies, or would there always be the same number?
Yes, the earth will logically fill up and Jehovah's purpose will be met. What happens after that is speculation but it is certain mankind will not just become stagnant. Once Jehovah completes a purpose, he begins another. Jehovah will always make sure the "desires of our hearts" are met. (Psalm 37:4).
The scriptures do indicate that in the beginning of the 1000 year reign there will be more divine instructions, perhaps in the form of more inspired writings. Our purpose will then change. Likely, after Armageddon some things will have to be cleaned up. It will be a time of more fully educating mankind. And a time of welcoming back the dead, progressively, they will not all be raised at one time, and basically repossessing the earth.
That does not mean however, we are going to do this to the exclusion of everything else. Mankind will continue to learn and "evolve". We will stop destroying the earth with our pollution but we're not going to go backwards, so to speak.
would there be no meat, since there would be no killing or dying?
I am not certain. One thing for sure is that animals will not live forever. Animals will still die. Adam and Eve did not eat meat, but animals were given as food beginning with Noah. I don't know if this is permanant or if it has been done temporarility for a specific purpose. Scriptures do indicate animals will become more peacable.
"The wolf will reside for a while with the lamb, And with the young goat the leopard will lie down, And the calf and the lion and the fattened animal will all be together; And a little boy will lead them. The cow and the bear will feed together, And their young will lie down together. The lion will eat straw like the bull.." (Isaiah 11:6,7)
It has been pointed out that it says "reside for a while
". YLT used the word "soujourn" which means "1. a temporary stay: during his sojourn in Paris. verb (used without object) 2. to stay for a time in a place; live temporarily". This may indicate predator and prey are not entirely best friends, but may just be relatively more at peace with each other.
Also the part about the lion eating straw, it has been suggested this may not indicate an entire change of diet but perhaps a diet suplemented with something else orther than meat. Of course is may be very literal.
One thing to keep in mind is that on the seventh day Jehovah rested from his work of creation.
Once that seventh day is over he will resume his work. Notice he does create again "See, I will create new heavens and a new earth. The former things will not be remembered, nor will they come to mind." (Isaian 65:17)
The scriptures say there will even come to be grain on the top of the mountains. -- (Psalm 72:16). It may very well be that new forms of vegetation will be introduced. There will be food in the desert. It could be that some new vegetation could be the diet of meat eaters. Some scientist is even trying to find a way to turn vegetation into meat and is have some success. If Jehovah creates then anything is possible. Perhaps humans will even take part in changing these things. What could humans themselves do in 1000 years if there were not so many opposing conditions?
Where would the babies be born if there were no hospitals since nobody got sick or died?
Midwives are a very real possibility.
The Bible does not directly answer some of your questions. But in these cases there are scriptures that can be applied that can at least give us some possibilities. The main thing is that we will stop destroying the earth. Jehovah does not limit what we can do as long as we stay within the confines of taking care of the earth and not destroying it or what's in it. He does not create for us to destroy. That creates a conflict of interest. Imagine a creation of yours purposely destoying your other creations. How would you feel?
I do enjoy talking about these things. I hope the post is not too long for you. But you should keep in mind that Christ will then be ruling unopposed as king with a real functioning government. He will lead us. Yes this takes faith (trust) and faith can be a scary thing, but at some point it's required. If you get to know Jehovah he will earn that trust.
This is why I keep emphasizing that like Adam and Eve we are always going to be ignorant of something. Jehovah will educate us and we can educate ourselves. But where we are ignorant we need to trust Jehovah. The only time we won't need to have trust for him is when we know literally everything and I don't think that's possible, even if we are given forever.