First off not every girl is capable of squirting, some just gush (get really wet) as they orgasm.
That being said if your going to give a go, most girls who can will tell you that its just as much a mental thing, as it is physical. You should be completely relaxed and work your way to a high state of arousal, get yourself super turned on!
Second part consist of stimulating your clit and your g-spot… possibly a combination of both, depending on what feels best for you! The -g-spot is inside your vagina about 1 -2 inch in at the top as you curl your fingers (back side of your clit if that makes any sense?). Most people agree that stimulating the G-spot with two fingers in a "come here" motion is one of the best ways to get yourself or a partner to squirt…. It's going to feel like your going to pee, but you need to push through it and just let things explode!
Good luck, hope this helps you out!
Hey, its ok you masturbate and stuff, but you shouldnt have sex yet on your age, im a 13 years old boy and i do it too, but sex goes a little too far, you need to be at least 15 or older... IF you have sex already when its possible, be sure to use a condom!!