Sound Aversion ruining my life

Hello all, this ones hard for me so please be kind. I have a serious intolerance to certain noises, sounds, crunching.. certain mannerisms to the point where i can’t even function because it’s like a megaphone in my head. I know people have named this as misophonia and I’m guessing people can experience it at different intensities but mine is running my life and could eventually ruin my marriage. My poor partner can’t have a crunchy snack on the couch, clear their throat which they are required to do constantly due to health issues or use the same word in a sentence more than a few times without me being triggered. It’s not fair to them and it is absolutely exhausting for me to the point where I feel like life is too hard to live because I can’t just enjoy my day without feeling like hiding away in a dark room with no noise. I used to self medicate with alcohol which became a huge problem, but that was the only thing that drowned out these sounds which physically impacted me. I know I sound horrible, I hate myself for this... but is there medication etc.. anything that can help, has anyone experienced this and found a way to overcome it. Is it really a medical condition and if so how do I treat this. I have been medicated in the past for anxiety but the medication did not help with my sound aversions. I can’t keep living like this and impacting the ones I love.. please please someone tell me they have experienced this and been able to fix it!