I am putting in a "lasagna" bed this year, which I am too lazy to explain right now, so
here's a link if you are interested.
And some plants like a lot of nitrogen, and some hate it. I fried a couple plants before I realized I really need to find out which ones wanted it instead of dumping coffee grounds on everyone.
I think it's fine to add compost
in general sooner than a year, it's just the
chicken poop specifically that I would wait for. Aside from the good possibility of burning your roots, if you are using it on food plants, bacteria can also be a problem.
P.S. you took a
what class!?
I mean, really, I would probably enjoy it, but I had not heard of an "Advanced Master Composter" class. And then I would fail it because that's how I roll.