Thick Thighs

So I'm 16 I'll be 17 in May ! Whooohooo. I'm a tall girl 5'11 to be exact and I'm also overweight to get to the point, I have a a lot of fat in my inner thigh area and naturally I have a hot body temperatur (I'm always hot) so all day my legs are constantly together not getting any oxygen and I shower all the time and I have little odor is it swear it a PH balance thing ? How can i fix it ?