Hi!
Crop rotation- That is not something to worry about right now.
Compost- Most of us here do it the slow but easy way. Trying to get it hot and fast takes more effort and I have never had consistently good results that way.
Keep on piling everything organic. After 6 months or so, fork it up, move the top stuff over to one side the start building the new pile, and see if there's some good looking stuff underneath. Dig that out and use it.
Don't read bloggers don't watch videos- too confusing and mostly they try and make everything sound WONDERFUL to get you to keep listening.
Ask around about free horse manure - any horses near enough? The feed/gardening store and nursery once gave me a source. I've even brought it home in 5 gal buckets in the trunk of my car. It's the best instant soil builder I've ever used and free for the digging. If you find a source and can put a few inches over the garden space over the garden, you'll have a great start for spring.
We all understand lack of focus/confusion with gardening. I don't want to write too much at once. But there are helpful people here who will answer questions. I have been watching my son with a similar situation and I know the struggle.