im 15 uncut, and i just started retracting, i know about sensitivity and im working on tht but what im worried about is: when i pull my foreskin down under my head i get a burning sort of feeling, i always pull it down when in is flacid but then it gets erect. i can't ever get it to stay flacid no matter what i do, why does this hurt? and also i've been hearing about this stretching thing is this relavent to my problem?
2 quick but important questions
Where do you feel the burning sensation? in the head of the penis, or your foreskin? The burning is probably from your foreskin being too tight, and your erection is stretching it. I would work on the stretching exercised you've read about here, and that should fix the burning feeling after a while and your foreskin stretches to where it should be.