Im 17 and my foreskin is hard to pull back when erect, i dont want to go to the doctors as I would feel embarrased. Can anybody help me?
It's very common. You should be able to loosen it up yourself.
Read this thread: https://www.steadyhealth.com/17_and_cannot_pull_open_foreskin_all_the_way_t255547.html
Hope it helps!