Two weeks is barely enough time for conditioning for any type of PE, much less getting hardcore results. Possibly recalibrating expectations might be helpful and reorienting toward a more long-term campaign mentality.
For example, I just returned to hanging in May. After some conditioning for several weeks along with schedule adjustment (seeing what would work, what I’d put up with, etc), by late June I had gotten back into the swing of it. At that point I started to make weight progress and work at reaching fatigue.
OK, that is all hanging terminology and so on, but I follow that up by saying that I won’t be doing any measuring until the end of August. So that’s what - the better part of 3 months (give or take) that I’ll be doing some PE before measuring? Point is, I am in this for the long run, I know it works (based on past experience), and waiting to take a measure just keeps my head down on the task. I am not anxious about it.
I say all this because honestly a few weeks is nothing over which to expect the body to do anything. Keep at what you are doing (assuming it is sound; if not, change it) and instead ease the mind on making expectations. Because growth will come.
EDIT: Btw, I will be doing air clamping at the end of my PE campaign (the final piece). I bought an air clamp some time ago. Because I have some healthy respect for not blowing up my internal plumbing, I am really going to take my time working with the clamp and seeing how the pressure feels and all that. That is going to take some time, but I’m cool with it.