Welcome to HCM.
You have not mentioned your age. I presume you are talking about foreskin covering the head of your penis. You should gently try to pull back the skin over the head of the skin. If after a few days attempt you are unable to pull it back then you have a condition called phimosis
. In this case there is no other alternative but to consult an urologist
or general surgeon
. Don't feel shy to tell this to your parents, as they are well aware of these things and will take you to the doctor.
Wish you all the best.