Sexually Frustrated it's like "okay so this is it?!?!"

Might be a physical reason why the reality of sex is such a let-down.

Could be you are fantasising too much...
Could be you have desensitised your clitoris somewhat with your vibrator.
Could be your expectations are too high - perhaps because of porn...

Might be something really simple like your clitoris being too heavily hooded.

You haven't included very much information in your post so it is difficult to speculate any further.

You haveto sort out your problems by yourself first. If you cannot masturbate to orgasm, the chance that your partner can do it for you is almost zero.

Getting an orgasm depends on your body, your technique, your brain and understanding how to let the tension build. What do you feel when you masturbate, and why do you stop?

There are two techniques that may help you get your first orgasm. Once you get that, you can go from there.

Water - let water from the bath faucet run over your clitoris. You can move your lower body a bit to vary where it hits you.

Pillow - folding one or two pillows double, kneel with it between your legs and hump it (like you ride a horse) by moving your pelvis forwards and backwards, up and down and in small circles.

Both these techniques should place enough tension in your muscles to allow you to orgasm. And both techniques are simple and quick.

Remember that your orgasm comes from your clitoris, only very infrequently from your vagina. All stimulation should be concentrated on or around your clitoris.

Best of luck!