help me save my handmade hoodie! mildew...

I'm stuck on what else I can do to stop the mildew smell! left in a washer for several days, then put on a deep clean with detergent/biz and dried.

this hoodie is the first one I ever made and I wear it all the time, even in summer!! I'm frustrated that I made the mistake in the first place.

what I've done since:

it's been washed and dried multiple times along with other non-smelling clothes that are coming out just fine. my routine is the HEB detergent (the one with lipase), 2 tbsp of biz, and citric acid in the rinse. I've done hot and warm washes, and after drying I can STILL smell it.

this latest time I added downy fabric rinse (rinse out odor) and at least husband likes the effects on his clothes, but I can STILL smell it on mine.

what's the next step?! there are other clothes affected too, but this hoodie is the one I'm determined to save.