Thanks to ADHD part. School was kinda useless, due to 2 quirks and how school is set up.

First, the sitting still and listening to the teacher. If i sit still too long i will doze off, there isn't anything i can do about it. It's completely out of my control, best i can say is be more stimulating. Yes it happens to this day. Most lessons in school involve sitting still and listening to someone just talk, you can imagine how regularly i dozed off. It doesn't matter how much i tried or wanted to pay attention and stay awake, it wasn't under my control. Majority of people cant even comprehend it. intrusive sleep

Second, school was set up to just pass a test, way too many teachers just gave a long list to memorize for the test. My memory and recall ability aren't under my control. It's ran by RNG(random number generator). Whatever i pass a test or not was completely up to chance, pretty much 50:50 every single time and 50% of correct answers was needed to pass. Most of the tests i passed and if i didn't, i just did it again and oftentimes odds were in my favor.

There were few lessons i did much better in. Like PE or woodworking or cooking, mostly because it was hand on active approach with those and no actual tests.

Luckily ASD side and lack of social awareness protected me from the worst of the social effects.