Anyone else tiliting badly on their main or favorite champions?

Ok last season I almost got around a 65% win rate with my most played and main champion Volibear with over 130 games on him...then it was getting around the end of that season where they were changing alot of stuff and it went down to 55%. That's not bad but I just started randomly tiliting with him for whatever reason.

I didn't change play style or anything either. I do good in my lane all the time but then I couldn't carry the game out with him. So I decided to move him to the jg instead of top because he's really good there even though i prefer top and I'm still tiliting even there.

This season I have a 38% winrate as of right now with him like 8 wins and 13 lost. Now iI know it doesn't look that bad but I went 10 straight lost with him out of nowhere. I even play him out of rank a couple of times and went 8 lost games with him..I played other champs also and I go on a winning spree then I try him out again I just lose...It's getting irritating at this point and I'm beginning to not want to play him ever in fear I will ruin my winrate with him even more because he's my number one favorite champion..

I don't know anymore but maybe I just can't get used to this new meta with the guinsoos...when in jg there's always another champion getting sated (xin, yi, warwick, nocturne ect.) or its just all these snowballing champs over all. I can't keep up..riot changing too much of the game for me... I also see that Volibear has one of the highest winrates but I just can't get there as of right now...anyone else?