I have a sweating problem?

I sweat ALOT and i've recently tried arid extra dry, but it doesn't help, i've also used mens deodorant but nothing works! I've heard that your thyroid can cause some issues but I have been diagnosed with hypothyriodism and take pills for it. I'm only 12 so I don't want to have to get botox in my pitts! Its realy embarring and uncomfortable, it used to be only when I wore tightish shirts, but now even when I wear a T shirt. I've never had this type of problem before like one or two years ago. Will I grow out of it? Is this a major problem? Any help helps.