failure to progress. what do now.

The wall exists for everyone on every exercise. The idea that you can improve indefinitely feels possible when you are in the first few weeks of a program, but that's just not how life works.

You will improve:

The nervous system 

Muscles

Tendons

Bone

Somewhere in there, progress will stall. So what do now?

Option1: do nothing

This is definitely an option but it SUCKS. It means hitting the same weight and the same movements week after week until progress occurs. 

Option2: deload

This means a week of lighter weights and volume on the same movements. The idea is that you will restart a new cycle at a lower weight (but a higher threshold than the previous cycle) post deload. Great if you plan on keeping the same movements for a longer period of time.

Option3: change movements

This is NOT a program overhaul. It is a form of deload by exchanging the stalled movement for a similar movement. This is the money shot if you have no intention of being an expert on what stalled. I.e. Gen pop, quadrant 3, non sports specific damn near everyone training.