Help, Too Much Stress, Need the O!

Ok, so I have been sexually active for the past 2 years and have not had an orgasm until a couple of months ago, and get this.. By dry humping my boyfriend! No sex! Once it happens I feel free to make my guy hit cloud nine because that's pretty much where I am, and the foreplay is top notch. I now know what it means to have an orgasm, and it be a stress release.. However, my boyfriend has been away for awhile and I just can't wing the vibrator, just not a fan. I've tried pillows or whatever, something like that (please don't judge), but only have gotten it to work twice. Please help? I am a huge fan of what my boyfriend helped me discover, however weird I make it happen lol I just need to know how to find a good substitution when my guy is away!