I tried Ritalin and Vyvanse each for very short times last year. Vyvanse was really good in ways but so unpredictable with making me sleepy for a bit (from the dopamine?) sometimes, or energetic at other times.
I also tried Dexedrine for a short spell, then have taken it a few other times. It was really great in that it made it possible to just push myself to do things even if I didn't want to, and made my thoughts more organized. It helped my moods a little in some ways, and I felt better because I was actually getting some stuff done, but it always seems to give me this strange sort of flatness after a few days that isn't quite like antidepressant numbness.
I've never stuck to any regularly though, which I still need to try. I definitely think they can be helpful. Good luck!