What causes a slump?
If you play frequently enough to recognize you're slumping odds are you haven't had a mechanical breakdown. Maybe if you had a physical change in your body, heavy bruise, sprain/strained something, etc.
I believe it can be traced to either less time on the table or a breakdown in focus.
Stress is a powerful thing. A new interest, got a new kayak, motorcycle, etc, takes the mind off what is at hand. There are many outside factors that can take your focus away.
Break the slump, get your focus back. First part is the desire to play. If it's not there, don't play. I've played better from watching others play. Not only pro games but the local tourney games. It builds in me a desire to play, I'm engrossed in the game, I'm visualizing shots and English, speed, the leave...my mind is in full pool mode now. Now, I want to play and my mind is woke to playing pool.
Great advice if you take playing pool super-seriously, but I'm not gonna want to focus on pool so hard that I give up the many other enjoyable endeavors life has to offer. I also LOVE fishing, hunting, target shooting, reloading ammunition, 4-wheeling, and camping. I once included bowling on that list.
I've got to spread my focus on many things...primarily on family. Pool is just an enjoyable activity for me and my wife. IMHO, many people not into pool for a money-making aspect take the game way to seriously to get a maximum return on the enjoyment it offers.
Maniac