Change your workout. Once your gains start slowing or stop the its time to change. Order, rep range, exercises etc.... change is what keeps you progressing.
Sounds like you have an imbalance or possibly have something offset when you bench. Have someone watch you to see if you are even with how your body is set when you bench and then you can correct...
Try switching it up every other leg workout. Go mid range weight and for time rather than rep count one workout to keep constant muscle tension and the other workout day go heavy enough to barely get...
Every angle and every grip you change will hit the muscles a little different. For me if I'm trying to maximize triceps I use flat bench because my shoulders come into play more with incline. That's...
Imo Mmc is best. Stick with it and your strength will catchup to cheat form. Throwing weight around may look impressive but the gains will lack. I'm sure you can think of some people that throw some...
Just my opinion here but I prefer going below parallel in order to take tension off of my knees. You might want to try it with a lighter weight to see how it feels. And you are right now about an...
Flare your lats and focus on pulling through them. It's all about connecting mentally and physically to the muscle you are trying to work. Practice with a lighter weight to get the form and...
Try switching up your grip. Also if you are straight up and down then you want to have a slight incline. You can also not do them as you can strengthen your shoulders with multiple other lifts to...
Do hip stretches, look them up. A lot of back issues stem from hip imbalance and alignment which throw your back out of alignment and before you know it you are in some pain.
This ^ and stick to Dumbbells and machines that have free movement for each arm. You want to keep your stronger side from taking over on lifts which is why I want to stick with things that prevent...