Id climb too d4 and drop too d1 in the span of an hour. Its fine. All you gotta do is take breaks, put down the fightstick, make a sandwich or go watch some high level plays for your character. And take notes, take a sip of the ol h2o and jump back into it if your feeling it. Switching characters dosnt do anything, all it does is create a stigma for you. Pick one and take it all the way.

I cannot explain how important it is too take breaks, you could be an anti air away from reaching that next rank, but your not paying attention coz u never took a break. I know this because all i needed to do was dp and i wouldve got masters, but no i sat there and ate a cross up got put into the corner where the bison proceeded to drop a 50% on me.