I used Retin-A and it caused dark spots; will they disappear?

i'm 23 male and i suffer from comedonal acne for around 4 years . I visited a doctor and she gave me accutane but i was afraid of using it . Also i tried Ratin_A and after using it for 2 weeks i noticed some of my acne turned into dark spots ,so i thought those black spots will stay fo .so if i used Ratin-A is there any chance the black spots disappear ? And regarding to accutane , does it cause erectile dysfunction ? Im really confiused and i don't know what to do ..please help

No doctor answers yet