Since my (current) husband and I practically started living together after a month, were discussing engagement after 2 months, and were engaged after three months (married 11 months after we met) I'd have to say "Go For it!
We've been married almost 8 years.
[Then again, the fact that I said/thought "current" above should tell you something about the current tone of my marriage. But don't let that sway you...I was married a month shy of my 19th birthday and MATURITY is a big part of it. I was married before I knew who I was. Too bad that I figured that out right after I figured out that "who I am" isn't compatible with "who he is"...]
I say, if you are comfortable in your own skin, and you are both being very real with each other, than do it! Your age (not trying to make a big deal of it) is actually a bonus and also, the fact that you've been divorced (right?) also says that you know what makes a marriage work, or not work.
so relax, have faith, and jump!