love lifting with athletes, as for the rest it's a mixed bag of mostly shit.
I'm also a "beginner" (in terms of how much weight I move) and I've had some stalling issues as well in the past.
I strongly believe most of them can be attributed to:
1) not enough recovery, which is related to not eating enough, not sleeping enough and too high frequency (or more specifically, too little sleep and food in relation to said frequency). I also feel a lot better doing active recovery and some kind of cardio 1-2x a week on my rest days rather than just laying around on the couch
2) bad technique, which I fixed by mobility work, proper warm up sets and more volume
Struggled a bit with the LP this summer even though I was bulking. Weights are moving up a lot faster now that I've increased my cal intake and get better recovery. Increased my 5RM for bench by 10 pounds in relation to last week, Could only get 4 reps on the second set though. Good progress anyway,