Puberty Question: Can I prevent my voice from cracking?

I'm kind of embarred to admit that I just turned 21 and I'm still not through with puberty, in-fact, it seems to have kicked into overdrive, and I finally got my first sign of chest hair, but also with the rest of the wonderful puberty side effects. The one in particular that I'm asking about is the voice cracking. It's begun cracking at a very high frequency, a lot of times every day. This is really embarring. Is there any way to prevent the voice cracking other than waiting it out? Are there specific things that aggravate it?