Help: I auto-tilt whenever I see Lee Sin on enemy team

I have this burning hatred for not only Lee Sin himself, but also any and everything surrounding this champion.

There are many reasons to why I absolutely despise this champion, both objective and subjective. I mean, let's just say he, his "fans" and his "fanfare" are for the very most part, just bullshiet and we all know it; however I shall spare you lot from going through the list.

Because that isn't the problem.

What's a problem though, is that I automatically tilt whenever his mug face shows up on my screen. My rage would overcome me, and I couldn't play properly for once against this guy. And it thus becomes a vicious cycle: I hate this guy, I tilt when I see him, I play badly and maybe got owned by him, and so I hate him some more.

So I ask: How do deal with this rage? How do I utilise this rage to defeat him rather than defeating myself before the confrontation even takes place? What should I do to distance myself from all the nonsense this guys has, or had, and just focus on playing against them like any other champion in this game who may or may not be objectively/fundamentally broken?

For the longest time, I have tried to contain it, but it doesn't work.

It doesn't have to be Lee Sin, any advice from dealing with your personal nemesis would do. Please teach me.