Xin is one of those champions you play to carry yourself in solo queue. My advice to making sure you win your games is to play aggressive. You should not be in the jungle hiding for 15 minutes before coming to gank. Gank a lane as soon as possible. Take advantage of xins early game strength and sustain. If you are able to shutdown a lane as soon as possible you will win. Xin has great pushing power for most junglers too. If you see an empty lane, take the tower.