Self cure for phimosis

I am 16, my foreskin wont retract and at the edges there is white hardened skin.
However the is no swellin or pain or anything like that so i am hoping it isnt bxo!

I dont want to see a doctor because i dont want my parents to find out, as it may be due to me masturbating alot in my earlier teens and i wouldnt know how to tell them. I definitely dont want to be circumsised

So i need something i can buy that will loosen up the tightened skin and thus able me to retract the foreskin.
Would lotrimin generic clotrimazole 1% cure it? Someone suggested it online, or is there something else i can use?