Help possible injury.

I have been PEing for roughly two years. I started clamping and then attempted to go back to stretching. After attempting to stretch again i feel DE-sensitized and erections are harder to gain. The tube type thing on the underside of my penis near the base feels weak. Can i have some advice on this please.

Take a week, two, or even more off till you get sensations back. Then use less force and more care when you restart.