Thank you for writing. Sleep deprivation, whether caused by sleep apnea or staying up most of the night playing video games, is a likely culprit when a kid is spacey and irritable. I’m sorry it took so long to get an accurate diagnosis. The good news is that you are responding well to a CPAP.
I’m not an expert on the long term effects of sleep apnea. I can only do the same thing you are doing — look for studies on the internet. But I think, for your peace of mind, it wouldn’t hurt for you to talk to a sleep specialist. The facility that did your sleep study can probably refer you to doctors who are particularly expert in the medical implications.
I also suggest you do see a counselor. it’s likely that the various childhood problems have followed you into adulthood. People who struggle with a long term issue in childhood are so occupied in just getting through each day that they sometimes miss out on developing important social and coping skills. It might be helpful for you to explore that possibility with a counselor. It’s never too late to “catch up”developmentally if you are willing to work on it.
I wish you well.