Foul Smelling Body Odour. Remains As Clean As Possible. Is There Any Remedy?

Hey I m an 15 year old boy, I have a really bad natural smelly body, people always say i smell bad , literally everyone knows i smell I put on perfume(I have changed it sometimes) I put on deoderant (I try diffrent ones) i put on anti-spirant, I have cream and spray for my shoes so it will not stink, I shower. Twice a day. I live in a clean invorment I am neat and organized i never wear the same thing again without washing it, and let it dry completly. The problem is tht ....... The smell isn t like armpit sweat smell it s not cuz of sweating! It s just me if you take my clothes off it smells like perfume but when it s on me well u know nothing works it is killing me! Nobody sits with me at lunch everyone goes away i sit alone in class i know it s really that bad!!! :( :( :( I cry everyday i try to make myself sick to not go to school i have had this problem for years i am the youngest in my grade so don t say puberty please answer ASAP. I think I will commit suiside. :( please help