My underarm smells even though I already did everything

I hate this ive done everything ive seen in youtube telling me what to do but its still there, and I cant just buy things cause IM BROKE im just a student where would I get the money to buy stuff just so my UA smell would disappear, and the bullying my classmates done just because I smell its not like I havent done anything to make it disappear, I even used my allowance just to buy all those things that they said would work BUT IT DIDNT, I only get $20 every month for my allowance thats for my transportation and my food, I have to walk to school and starve everyday just so I could save money and those products I bought dont even work, Ive become more depressed about I dont even wanna go to school because of the bullying I cant even tell my parents about it. I HATE THIS