I second 4f-mph, probably my favorite stimulant.. I’ve tried meth, adderall, ritalin, coffee etc..
it provides very clean stimulation, minimal euphoria but it’s there, and doesn’t kill my personality like ritalin. I find low doses of 4f-mph is where it shines.. I don’t go higher then 15mg per day, I do doses of around 5mg-8mg at a time.. and its really a good feeling, functional, clean and calm stimulating effect.. I think adderall is good too but I find adderall to be more euphoric and fun.. but for your case 4f-mph would be the best bet.. also there is a couple domestic us vendor who sells great quality 4f-mph.. I haven’t found 2fma anywhere domestic, but I have ordered 2fma from overseas. Hope this helped.