What to do about my excessive sweating?!?

Degree is the only Anti- Antiperspirant and Anti- Odor brand that really works for me, but it doesn't fully remove the stains!!! I sweat A LOT, during the day for no complete reason! It could be winter, cold as ever, yet under my arms there will be a dark and moist stain. It won't smell bad, it'll just be wet and it's so embarrassing! Being my age I know sweat is normal (13), but none of the other girls sweat like me. Why do I sweat so much?! I mean I always and I MEAN ALWAYS wear deodorant, but as soon as I get to school i lift my arm to check in the bathroom, and there is an armpit stain. It frustrates me so much. I have even tried Male Deodorant Brands because I thought they'd have extra strength. I shower EVERY MORNING AND EVERY NIGHT, and have used the following Brands:

Secret

Teen Spirit

Degree Girl

Degree

Degree Extra Strength

Dove for Women and Men

Secret

AND Secret Clinical Strength (Made me sweat even more, the stains were all the way down to wear my tank top started on my torso-- luckily I had a jacket.

It would never smell, just be MOIST AND DARK! I have tried tissue and paper towels but it seeps right through. I am seriously thinking of just wearing black forever so the stains won't show. Sigh. How do other people not sweat? HOW? I sweat more then some of the BOYS that I know!!! What do I do? What is the best way to apply deodorant? All tips, tricks, hints, brands, suggestions, or whatever else is welcome!!!