Since I Was Like In 5th Grade Ive Had This

Since i was like in 5th grade ive had this very bad body odor , i shower everyday, brush my teeth and use deodorant but the smell is still there i can hear people say that i smell like 'shit' everytime i go to the store or to school .now im in 11th grade and i dropped out cause everyone would bully me ...i think the smell gets worse when i get nervous cause i have anxiety .. what can i do ????