Exercise to treat premature ejaculation

I wanted to know if it was permissible to do some penis exercises with vacuum cupping therapy (dry cupping) with olive oil which helps solve premature ejaculation and erectile dysfunction.

I am unmarried and afraid that because of my teenage mistakes it will hamper my future martial life. I gave up all the wrongs which I did in my past and I do all my Islamic responsibillities. Will it be permissible for me to do the excercise on my own because I am unmarried. The exercise is to train the muscle related to that area for treatment purpose only.