Suggest Remedies For Phimosis

I am 21 years old and i just realized i am suffering from phimosis. I can retract my foreskin half way back when flaccid but find it difficult to do so when fully erect. Almost impossible to retract it over my head. I have been doing a little research and i am almost certain it isnt Frenulum breve. I was hoping to try some stretching excercises , but i could use any help i can find. I am not too keen on a circumcision.