Welcome to HCM,
You are having a condition called Phimosis
, treatment depend on severity and if it is mild it is correct please keep it clean by retracting it when not erect.
It would be good idea to consult a Surgeon and discuss as it also depend whether you are sexually active or not.
Treatment option are stretching of fore skin manually or with balloons, even application of local steroid
cream to prevent fibrosis
and stretching is useful.
is effective if other measure fail or Phimosis is pathological.
super incision or subterincisions Preputioplasty
,simple surgical procedure may be done depending on what is good for you
Best of Luck..