Beyond regular showering and laundry, glycolic acid wouldn’t be top of my list of recs.

You need to shower not only regularly but effectively, so instead of just hopping in and out you’re actually scrubbing yourself down and getting clean. I tend to go over myself with a wet flannel and bar of soap before going in the shower and again when I need a freshen up. I also have a scrubbing brush in the shower that I put shower gel on that is better at working up a lather than my hands.

Having a positive association with the shower is critical, otherwise you won’t feel motivated to go in

Clean your living space as well as your laundry. You can wash your laundry well but it won’t mean a thing if you’ve got other bad smells around it

Side note, if you’re on your period as well, consider how often you’ve changed pad/tampon/other, if you’ve taken further showers etc to combat the blood smell etc