Hello my dear friend Kamal
I share your concern, you need not to worry, We are there to help you out
Excessive
masturbation at an early age is a matter of concern
It affects your psychological development and may cause weakness and poor health after excess masturbation.
In my opinion you should
consult a psychologist for
counselling and behavioural therapy if you can't control it on your own
first of all it needs to rule out any organic cause for this urethral discharge which you are saying semen in urine,
this can be related to STI or UTI
You may require a course of antibiotics under supervision of your doctor
So concentrate on your studies
Please don't waste your time thinking and doing about these things
You should take good nutritious food to restore your health
Exercise regularly
Stay cheerful and happy
Thanks for your question
please feel free to ask for more assistance,I will be happy to help you
Best wishes