How to be more constant at a higher level?

Long post ahead

Back when ToO started i would drop 13-14 kills a game to about 7-8 deaths, i couldn't snipe well then and just thorned my way to the top, also i would go on tilt alot.

But lately i've dropped heaps (dropped my first breadstick 1-7 on the weekend) and now i average 7-8 kills with roughly the same amount of deaths, i can now snipe well so that should really bring my kills per game up or not as a big drop off as it was. i'll rarely get a game with 14 kills - low death but its just against noobs so i feel like it doesn't count at all.

I've now noticed i'm alot more chill and don't go on tilt at all.

How can i bring my self back to my old kills per game while keeping my sniping and my tilt down?

also my team hasn't changed we've all been playing together since the launch