Williamhung—Sorry about your struggles with PE. It’s tough when it seems like everyone but you is succeeding.
The thing about PE is that it becomes a challenge of experimentation, but each experiment needs lots of time to pan out as a success or failure. But even when you have ‘failed’ you have succeeded in one sense: now you know that a particular routine isn’t netting gains, so you can permanently eliminate it as an option. That starts a process of simplification as you move forward to try something new.
The psychological component of PE is the biggest test. Do you have the willpower to continue in the face of apparent failure to get what you’d hoped for? You definitely aren’t alone.
You noted that you haven’t experienced significant improvement in EQ, but you didn’t say that it has suffered as a result of the PE you have been trying. How about increasing your current routine a bit more, say more jelqing time combined with more aggressive warm-ups? What about intensifying your stretches or spending more time doing them? Maybe make your experimentation an attempt to see if you can prompt some better EQ? Push your training envelope a little, but of course always with common sense and your first priority being preservation of positive PIs.
Stick around. There are lots of veterans who’d try to help you push forward.