A lot of the time caffeine makes me very tired. But then if I have it late in the day, I stay up?? It's very inconsistent for me lol

Caffeine is actually known to have the reverse effect on those with ADHD than those without! In other words, it's super common for those with ADHD to be tired from caffeine. The biggest issue is that caffeine is an addictive substance and you can accidentally build a tolerance to it. 😔 However, if it helps you sleep then that's a good thing! Insomnia is (unfortunately) extremely common in those with ADHD.