Blaming the controller for every loss means you’ll never figure out what you’re actually doing wrong.

An explanation that covers every outcome explains nothing. If the hardware is at fault whenever you lose, then no loss carries information, and you have traded away the whole supply of feedback for ten seconds of feeling better. Occasionally it really is the equipment, and you cannot know that while it is also your default.

Pick one loss and find a mistake you made in it, even a small one. Positioning, timing, a greedy decision. Do that for a week and you will have a short list of real weaknesses to work on.