Help me!

Hey ladies! I need some help. I've tried everything from various positions to various sex toys, and I've barely been able to orgasm. I can count on one hand the times I've done so. It makes me feel really broken.. especially since my boyfriend (of two years) sometimes gets a little down because he can't "make" me orgasm. How do you ladies orgasm? Are there any tricks? Tips? Or am I just broken?