Underwear

Hi, hope everyone had a good Halloween yesterday. So, I am insanely picky about my underwear, partly because I have an insanely large amount of discharge, and I am hyper aware of it rolling up and/or trying to go inside, plus I need to be able to properly feel them for some reason. This is why I always wear my period underwear instead. However, mom doesn't like that because she is worried about the inner layers in the padding getting messed up from being washed so often, and she tends to notice when I'm wearing them due to the slight outline of the thick padding through my pants. She had gotten me really thin boy shorts that were practically see through with how thin they were, and they constantly rolled up. She was going to finally get me new ones, and they came in today, and they still aren't thick enough and they kept rolling up because they were just barely longer than the first try. I wore a pair for about 15 minutes before I burst into tears, and so far trying to just desensitize myself isn't working. Does anyone know (preferably cheap) women's boxers with legs that aren't at the same length as the groin, padding that is like period underwear but isn't visible through flared sweatpants, and you can actually feel them? Regular women's underwear is also fine as long as it is built similar to period underwear.