Master is disheartening

Hi, just for starters, i already know i'm a scrub. I've been playing on and off for some time now, and recently i reached master with ryu at about 120 hours. I was doing super great and really saw a lot of growth in my skill, and really breezed through diamond.

After reaching master, i knew i would take a lot of losses to get put in 1200-1300~ mr, which is where most people fall right after reaching master for the first time. And i did, although it was not so bad, i kept winning some matches in the 1400 range.

Fast forward a few days, and i don't know what went wrong, but i'm in a seemingly unbreakable loss streak. I'm close to 1000 mr now. I can't win almost any match, get destroyed by the most braindead strategies (low master has some of the most psychopathic people i've ever seen in this game lol, also i know it is my fault for letting "cheap" strategies beat me so don't lecture me on that), and fall and fall more in the ranking. It feels specially disheartening given that most people fall in the 1200s at most, i feel like i don't deserve being here. It feels very bad. I even went back to play with ken, who i had left in silver a long time ago, and still lost to some people there, so you get how i feel. It's like i've suddenly gotten worse than when i first started.

This is absolutely demoralizing. At this point, i still try to learn, because i know the correct mindset of treating your losses as opportunities to learn and not focus on only winning, and i thought i really had gotten that mindset down, but now i can't help but rage and go absolutely apeshit at the screen after a few loses, ragequit, rest for some hours, go back to the game and here we go again.

Also, i signed up for a local in a few days, which i really want to go to, so i don't want to take a break right before that. But anyway, this got me feeling like shit so i don't know what im going to do anymore.