Hyperhydrosis. Please help me.!

I have this problem since the age of 10 11 years now i am 19 and it's disgusting litreally I can't do anything whenever i feel nervous or anxious my palms of hands and feet becomes wet and the sweat from skin is flowing like a fountain i have to always use a handkerchief while i am writing becoz I can't write with my sweaty hands the copy and paper gets wet I can't grip tightly on anything and its majorly it is a very big social and shame factor in society I can't normally handshake with anyone. I've done almost all types of reports thyroid, ecg , infections , all are normal i had taken almost all possible treatments for this using of antiperspirant lotions ALDRY , and I don't know whether ionotophoresis works for me or not because it is a costly treatment, enquired for miradry treatment in which sweat glands are destroyed by a machine , also I know about botox injections but I don't think so they could help me as seeing the amount of my sweat releasing please help me ..!!