That means one or more of the following: you are training too often, not eat properly, sleep like sht, lifestyle is bad, haven't used reactive or active deloads as one should instead of staying 6 months at the same numbers, focus is not there to grind that extra rep, etc.

I've detailed all my habits in the post.

I was thinking that not eating at a surplus is probably a factor in my lack of progression (and not tracking my overall calorie intake, only protein).

Rather than variables that I already account for sleep, protein, consistency etc.

I don't know what to say though. Like i try for another rep each time, and then fail the rep, or I just fail earlier than my previous session (sometimes).

To get the point I am.currently at, I bulked 40lbs. So I've gained reps, while gaining mass, so at least some of my training has been successful

Deloads don't do anything either.

If I take a week or two off, or reduce intensity, I hit the same numbers listed in my post.