I understand exactly how you feel. The loneliness and feeling that no one understands (or wants to) can be overpowering. One thing that helped me was the virtual support groups you can find on the Attention Deficit Disorder Association (ADDA) site. They are groups that call in to a phone line once every 2 weeks to talk about their struggles. I found it very helpful. Go to ADDA.org and you can find all sorts of good information. Of course, I’ve found so many great articles on this site as well.
Another great resource is the How to ADHD YouTube channel. There are almost 100 videos with a whole range of ADHD related topics.
You are not broken, my friend. Just different, and that’s okay.