Hi Connor, ok your cut as long as you dont keep masterbating it should heal, if you keep it clean, and the spots these should go when you start having sex with a girl/women, well thats whay I was told and yes they did go.
Good Luck
As for the fordyce, a product known as Tretinoin gel or cream and it is a very popular Fordyce spots treatment.The prominence of the spots should reduce. This product can be even more effective when used in combination with an alpha hydroxyacid agent. As for the cut see your doctor.