Worst thing to do in a slump is to start pressing...which naturally is the first thing most of us do! Once I start pressing, I push the limits of SA danger and flight envelopes just a bit farther, and those lapses in judgment just make the whole thing worse.
A suggestion. Think for a second about what is the worst part of your current slump -- SA, gunnery, or ACM choices. Then, do something to address that one component. If SA, and you're a furballer, go into alt monkey picker mode where your only goal is to get a few and get home SAFE. (Don't do this long, or it may permanently corrupt your psyche;) )If gunnery, invest in some drone time and do things differently, like work on long range deflection shots or accuracy as you leave a barrel roll. If ACM, duel for a bit, or tangle in the TA with non-newbs. Shoot, emabarrass the newbs and impress them with your knowlege of hidden terms like "Immelman"
Or, just take up a completely new plane to learn, one that needs to be flown differently than your primary. The new plane becomes your mental excuse for struggling, and you'll have to break out of the ruts you're in.
Before long, it will come back. Been there, done that. printed the T shirt.