You're probibly not the next inSec

You may main Lee Sin, but being a "main" and being consistently good are 2 very separate things. Lee Sin is one of the hardest champions to master with consistency. Sure one of your games is amazing, but I highly doubt that performance happens twice in a row (not counting if you are smurfing for easier games). If you are not getting consistently amazing results with him, maybe it is better to not play him in ranked until you do. Lee Sin fall off pretty hard mid- late game and his flashy plays need setting up and some luck to pull off. While they are amazing if done properly, they also tend to lead straight to your death if done wrong, which happens far more often, especially in lower ELO.

It may be better to just stick to someone like Amumu or Zac who dont have too much at risk for their plays/ganks to work. They also can gank fairly easily (if not easier) than Lee Sin since they need minimal communication between players and have instant hard CC. They both scale well too. Other champions like Graves, Vi, and Fiddlesticks are not bad choices either.

Not trying to dissuade any of you guys from learning Lee Sin. Just maybe games would go much smoother if you didn't play him in ranked until you have enough skill to get consistently good results.