Yes, it's a known hidden problem to everybody mainly in men of your age group. It's time to discuss it openly. Do you know most of men of your age(20-30yrs) is suffering or have suffered from the same problem. 1st I am clearing a confusion sperm regenerates after every intercourse/masturbation. You feels lethargic/sleepy after masturbation its normal & due to chemical release at that time. Some time it reduces stress but after this you get more stressed & vicious cycle continues. It will NOT affect your health if done with a days interval but frequent masturbation will cause some harmful mental & physical effect after sometime. Don't worry just get involved in more addictive work or do something which will divert your mind from it. Ejaculation is natural if you don't do masturbation after a time there will be night fall. So, don't take it too much stressfully concentrate on a thing you love to do for a time. You can go for a counselling too. Stay healthy & be successful in life.
Next Steps
Proper counselling needed.