nine losing streaks 3 a and 5 b only 1c, 5 of the matches are highest damage of my team as jg, yes and i do gank at least 5 times before 15 minutes per game, and i tried to be as friendly as possible, and yes i always join group fight and push turret and do ward and all other things, why cant i win?
Xin is fine as a champ. Your build (itemization and runes) is terrible though. http://na.op.gg/champion/xinzhao/statistics/jungle
Your kda is very meh. You're dying a lot because you don't build tanky enough. Follow the builds/runes suggested in the link I posted.
Take a break after 2 losses or something , you need to break up the streak to avoid getting too tilted. I like aram and nexus blits because they are fun. Its a good indicator of how tilted you are getting if you start getting mad in these modes its time for a break from lol for that day haha.
right before I got to diamond I went on an 11 game losing streak
Try more fool-proof champions like Amumu or Rammus and learn the game first. Xin is a champion that invades, ganks, and helps shove down turrets quickly to win before late game. You can be bad on Amumu or Rammus early but still win the late game.
11 losing streak, i agree i did bad at my 10th game, i was too tired, but my 11th game is so fucking great, 2/0/2 at 4 mintues, highest damage and highest damage taken
