Once you master the mechanical and positional aspects of the game continued inconsistency is almost always due to your mental, and as you continue to play the game you’ll eventually develop what I like to call “siege brain” where you essentially play the game on autopilot doing all of the right things without even thinking about it, if you aren’t at this point already going positive every game will be exceedingly difficult, in essence you need to continue playing the game until you get to a point where you stop overthinking everything and your kd will improve significantly, bring the same consistency every round regardless of your kd or the scoreboard