sexual problems and body weakness,Any experienced doc please

I am 22 year old guy from India

I am too weak and look like a 15 year old kid

I have masturbation habit since I was 15. Its like addiction to me.(I still masturbate 2-3 times a weak)
my penis length is very small
I am also suffering from premature ejeculation.

Penis doesn't get hard as before

I go to urination too much

White drops comes out in the morning and before urination sometimes
I have huge problem of wet dreams (every night I fear that it will happen again)

I always fascinate about sexual matters.

Beared is too less on my face

My hairs are falling ...I am almost bald now

I am stressed and frustrated always

Headache is regular to me now
But it becomes worst when I travel.

I feel vometing when I travel anywhere

I have no confidence

I can't talk to new people easily

When I talk to new people my heart becomes like it will come out of my chest

I plan about everything but can't apply same in reality

Its too hard to me learning new things

My memory is too weak

Please help me ....