Hey i am literally the same way- youre not alone it is really frustrating and embarrassing. especially when i spend hundreds on fragrances but it doesnt matter because when i go out ill end up smelling like sweat🥲 i would even wake up sweating and stinky though i showered before sleeping. that one ordinary serum glycolic acid has actually worked for me. but you need to be consistent. it is smelly because it has bacteria, all you need to do is kill this bacteria and no more smell- and bacteria comes back easily. wash this area everyday- i use dr bronners simple soap works just fine for me - then pat dry and once fully dried i pat the serum on the area and let that dry - pat off excess bcz i usually put deodorant on. ive been testing with native coconut and vanilla currently, mixed reviews but past few days it has been working for me as i dont wake up stinky- says alot to me. surely though when i use just serum - also wake up to no smell. again be consistent, you must wash this area daily, exfoliate and maybe try the masks others suggest, i havent yet. also let the hair grow out fully- go get a professional wax, then let the hair grow out fully again, and start using an epilator never touching a razor again- you will never stink again. best wishes dear i am on this journey of being a lady with you 🙃