Whenever i bench press, i notice a couple of things: 1: My arms tire before i can feel my chest getting tired 2 I get back pain 3 sometimes i dont even feel my chest at all during a set

I do 5 sets around 8-12 reps. Does anyone know why this happens?

Is it because my arms are weaker then my chest, hence why they tire so fast?

Is my arch too big? i can swear i have a good form during bench press, and most of the time i feel backpain. Some people say lay flat on the bench, but then that would mean my chest isnt up anymore (no arch) wich would lead to less growth/tension on the chest right? Its very frustrating. It feels like nothing is working. sometimes during bench press i do feel some chest pressure, but its not consistant. the biggest re occuring problems are back pain and feeling arms more then chest.

someone plz help bro im actually so frustrated at this. Would mean alot to me.