Maybe don't play for RoT's. Someday you are going to have to do something and you may not have motivation ... and you are going to have to find a way to make it ... enjoyable. Now you don't have to play C2 at all, but you could play for fun, to challenge yourself, to beat someone, to teach someone, because what's on TV sucks, because you cannot do any C2 stuff in real life, because lasers are cool, etc. Hope this helps. If not take a break.
Rots don't matter. And if you're getting it, you're more than likely not playing in a good group. And are your usp shots actually hitting?
in the earlier matches, you kind of seemed to just be mashing the trigger button as opposed to spacing/aiming your shots. with the usp at least. But yeah, lag happens and invisible people/smaws exist. gotta deal with it :/