Bullet journaling is my favorite way to stay organized! Bullet journals are super customizable which is my favorite part. You can add anything you want to help you keep organized. I like to add tracking pages! Here are a ton of tracking page ideas!
I keep a "Game Journal" as my daughter calls it where I write down notes about my games but also keeps all sorts of lists, lines of poetry, what went well today, and stuff like "Things That Make Me Happy.