Natural remedies for ADD?

I have struggled with ADD my entire life.

I’ve taken several different dosages of Aderol…concerta..ect.
They worked, but the side effects are awful. I lost personality, appetite…expierienced some depression. I couldn’t sleep. And when I couldn’t sleep, they wanted to medicate THAT side effect with ridalin. I decided sophomore year in highschool i’d had enough.
and then I experienced tremendous weight gain after I got off the pills…long story short, I wouldn’t recommend behavioral meds to anyone unless it were in the worse case scenario.
I’m still having trouble focusing in class and at work.
I work at an outlet store in a tourist town, and it’s just starting spring break season today..I nearly had a mental break down today, because I had people talking on the radio in my ear, phones were ringing, new associates were asking me questions…
I just need something to calm my nerves….and help me process one thing at a time.
(I also have auditory processing disorder…to top it all off.)

I just need some sort of remedy that won’t cause me more problems than I already have.