Trouble masturbating

So I have a really high sex drive and my boyfriend has a hard time keeping up with me which results in me being bitchy a lot which I don't like, but I have trouble masturbating. I've tried it when I'm really horney but I can never get off. I think using a toy might help since using my hands never seems to work, but have no idea what to start with. And I've also considered porn but it kinda makes me uncomfortable, does anyone know any "woman friendly" porn sites?