Thanks for query,
I think you have glans
covered with Debris.
Our glans is covered with skin and debris collected between glans & skin some times difficult it to retract.
If this is the problem you may come out by retracting skin & cleaning it everyday.
But If you have a tight prepuce that is phimosis
& you need to remove the skin as this is required for future safeguard ,a circumcission operation.