First, don't automatically assume people hate you. I know it's easier said than done.
"You should never attribute to malice that which is adequately explained by stupidity, ignorance, or incompetence."
Second, if you think your ADHD is affecting your relationships you should probably just talk to the people you think are being affected by it and ask for their side of things.
Though, I will point out, that your friend should also be communicative about issues if they are having them.
Third, remember that ADHD isn't a character flaw. You shouldn't feel ashamed of your symptoms.
Forth, not everyone is going to like you. People change over time, and most people are temporary in our lives.
I personally believe that people are lessons that need to be learned in order to love yourself and the world around you more; there for you to grow and strength, both literal and metaphorical.
