um questions to masturbationn :l

umm im a 13 yearr old girl haha umm ive started masturbating since last yearr and umm i love using my fingers or either that id lay on my back and hump a book and it feeeeeeeeeeeels soo good on my clit.. at times me and my bf whos a bit older would have phone sex and tht helps alot :-P but since im still a virgin (yay) hehe id use a brush at the end and think as if hes f***ing me :-) hehe and i would orgasm alot ahaha once or twice ive squirted and i freeaaked!! ha o.O is tht normal?? and id like to knw anymor tips and then if squirting is normal too ... hahaha >.< please help or answer right awaay! haha