What should I do if I think about masturbating every time I see a beautiful woman?

Patient's question:

Here is the English translation of the provided text, with line breaks preserved as instructed:
In school, every time I see a beautiful girl, I want to masturbate and can't control it. What should I do?

Doctor's answer:

This is lustful thought. One way to break free from lustful thoughts is to recognize them early, eliminate them early, without hesitation, and without indulgence. As soon as the thought arises, become aware of it and then eliminate it.