Someone tell me how to fight Master Yi, I beg you.

I am getting REALLY FRUSTRATED with Master Yi's being in 95% of the games I play. Although we can very infrequently ACTUALLY win against him, it is incredibly difficult. I have fought Katarina midlane before many times, and honestly, I don't know why everyone finds her to be so difficult until she ganks every single lane. In the laning phase, almost every midlaner I use trumps her (Lissandra, Cassiopeia - Even Karma works!). However, when Master Yi jungles, he legitimately ruins the entire game. First he ganks bot when they don't even need it. Then he camps/gets drag. Then when he's fed and the teamfights begin he destroys every single person without breaking a sweat and we end up losing. I am so flipping sick of fighting this champ. I honestly wish he would be nerfed to the ground, but until then, how can I counter this champ? Keep in mind the champ you recommend for me to counter him I will probably start using EVERY SINGLE GAME in hopes of reducing the popularity of Master Yi to that of Syndra or Urgot. Please, I beg you, tell me any champs that counter, how to counter, etc... I already know that "Hard CC" is great against him, and I fully realize that, however the only champion I have EVER used that has CC hard enough to even stand a chance against Master Yi is Lissandra, and thats ONLY because of her Ultimate, nothing else. I wouldn't be surprised if everyone who commented on this post felt the inexplicable need to tell me to learn LoL or play OP champs to compensate for lack of skill, in fact, I couldn't give a shit. But I hope that out of everyone who reads this post, SOMEONE will come to the rescue and actually tell me how to counter this satan reincarnate of a champ. Thank you :)