hi
welcome to HealthcareMagic
from the statement it seems you need some determination only to build your life and future
every thing starts as first thing in life when you do something for first time
it is no excuse to say that you dont like sports as you have not any since childhood
you are only 20 and this is the start of life only
what you need is active involvement in sports and other activities to keep your self engaged
by exercising for 45 minutes only you body will be boosted for 24 hrs
it will boost your memory and performances in studies
do the things that will keep you mentally happy and your frustration gone
regular exercise and balanced diet will take you to your goal
masturbation is no wrong
it is natural with normal male but any thing too much of any thing is wrong
feeling inferior after masturbation is wrong
the act by itself is harmless but feeling guilty about it is harmful
once you take active interest in other physical activities and regular exercise and balanced diet no longer you will need other drugs to boost your memory or vitality
being happy all the time is the solution to all your problem