Is it normal that i find it hard to masturbate?

Ah, I suspected as much. I think alot of people were assuming you were male. It's certainly more normal in that case, it does seem to be a more common complaint for women.

'Fraid I can't offer any tips thought, not being a woman myself.

Well that is your problem right there, take your two index fingers and rub some baby oil on them, splash a little on your vagina as well, start in small circles rubbing around your little "hood" (clitoris) situated at the top of your vulva, spread your legs slightly and every now and again let your hand glide over the whole entrance to your pussy, rub it up down, up and down then start circling your clitty again, continue with this whole process until you feel your pussy contracting from within, you will feel a whole warmth spread around withing your pussy and your breathing will get very heavy, your toes will start to curl inward and a tingling feeling will emit from your clitoris, congratulations you have achieved orgasm!