Got too many questions to ask..

Why I never feel like I need rest days. I never feel tired or fatigued after gym, and absolutely nothing, even though I think i push hard and go to failure on most working sets.

I almost never feel any muscle on any lifts specifically, its just I do them till I cant perform it again.

My reps have been decreasing in this last month and I dont know why, for example I do like 3 reps less on bench press than a month ago.

Feeling hopeless, because I got too many problems in the gym rn and I dont know the answers, and nobody else.