No, you replenish your sperm all the time. You never run out.
Sperm is being produced in your testes. When you masturbate or jackoff as you put it, it is in the stuff that comes out your penis when you cum/ejaculate.
of course you do not
depends how you go about it
Carmex works wonders
jackoff
No not at all I started when I was 10 or 11
nope, trust me we dont
only if you flush the toilet
des nutss
jackoff
jackoff
By sToping at the climax and using your less dominant hand