I have this really embarassing sweating problem . Help!?

Ok. I'm 14 and I shave my underarms daily. I clean them before I go to school with soap and water. I put on secret sport deoderant. I start gym tomorrow (dressing out) (because of the snow so it was delayed) we are wearing GREY. Why do I sweat like this when I shave and wash daily? My mom said something about my dad did it and genetics. Or it was because I haven't started my period, I need to know why I sweat like a freaking pig I weigh like 100 pounds and I'm about 5 feet tall and help will be greatly appreciated