Longest losing trend

Welp I think I'm done with this game. Not talking about a 10-15 game losing streak in a day. I had been playing T11 for the longest time (probably half a year at least) and was always hovering between 600-800 trophies in T11, 800-900MM coins. All other tours maxed out aside from T12, win % at that time was 53%ish. Not sure what changed, but about 4 months ago started a losing trend, and these days can't win a game to save my life, even in lower tours. Just dropped to under a million coins, win % is now in the 40's range, and at this point the game just isn't fun anymore. What's your guys longest losing trend?