Hi Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concern...
According to your symptoms you should be suffering from
depression after breakup from your partner. This might be reason of you feeling physically & mentally
fatigue. To overcome depression following steps might be helpful:-
1 You should make new friends & start spending your time with new friends.
2. You should do sports or physical activity like jogging, cycling etc. Physical activity helps to rel;ease hormone that help to overcome depression.
3. You should also
consult a psychiatrist. Sometime a problem is easy to tell some person who you don't know. He would try to find out your problem through coinselling.
To reduce
masturbation, You should try to focus more on your studies, education, sports activities, etc. You should also avoid watching porn/adult content. You could sleep in such a way (such as tight clothes, wearing gloves etc) that your hands could not gain access to your penis.
Hope this information helps
Good luck