You have a beautiful uncircumcised penis, which is certainly well-suited for masturbation. A frenulotomy can further increase the foreskin's mobility. This is even better for masturbation. Then the penis wouldn't be pulled so crooked when the foreskin is fully open. I'm writing from my own experience as a habitual masturbator. I removed my frenulum myself. Do you still have your frenulum? It's very pleasurable when the foreskin can glide more freely over the glans during masturbation. Masturbation is a pleasant and healthy hobby. The frenulum itself isn't sensitive. Without a frenulum, the surrounding tissue can be stimulated more effectively.