The topic is rather simple. I need help with adding stuff to my pool. I did go to the pool help page and it did help me start my own pool, but it isn't enough information. Someone please give me more detailed help on getting started with my pool.

there are 2 ways:
1. Click on Add To Pool and write the numbers of your pool, the numbers are in the link.
For example, if I wanted to add something to the pool Black Pussy I would click on Add To Pool and write 62947

2. You can edit a post writing pool:[pool_numers]
For example, if I wanted to add something to the pool Black Pussy I would write pool:62947

I did that, but now it's asking me for my pool id, which I can't find.

Where can I find my pool id?

It is on the url.

Got it, but now the question is how do I keep track of the pool. There is no link on gelbooru that will allow me to directly connect to my created pool. That means that my pool will eventually become lost in the sea of other pools unless I consistently update it. How will I be able to easily find my pool?

bookmark them the same way you do with all other valuable URLs you come across

You better save the url of the pool because there is no search engine for pools.

that's why ya bookmark'em..nothing wrong with that.