What Causes Pain In Penis And Blood In Urine?

Hi, i'm 15, i'm really worried about my penis, its started to get pretty sore and i'm un able to retract my foreskin, i also believe the hole in the head of my penis is too small which could be causing the pain, it only really hurts when i urinate, i have had traces of blood in my urine from tests quite commonly and have had a couple of infections, can you help? im too worried to talk to my parents or friends