Hi I'm 14 and have been masturbating for 2 years now. I masturbate about 2-3 times a day. When i ejaculate the come squirts out about 1 and half feet and i usually have 4 strong squirts of come. Is this normal for my age? What should i do?

I've got a couple of questions to ask.
1- first of all i wanted to know if there is any special kind of food that makes a man cum more ? ( i'm 21 and a bodybuilder )
2 - is there any kind of vitamins or minerals that could possibly help me make my balls bigger ? compared to others , i think i've got small ones.
3 - and the third and last question is about me and my girlfriend. my girl is still a virgin and we can't do it. each and every time that we try she's got a lot pain and it makes us stop doing it. And there's another problem about her sex drive. most of the time she does not want us to do it, and even the time that we are trying she does not let us flirt or do oral or such stuff. i'll appreciate it if you could give me some help and let me know if there is anything that she can do about her sex drive.