We're not very pretty.
Well, AZB is...
Where is he? I've been waiting for his input.
And Shawn, I'd recommend in your situation having an exit fund or some exit strategy in case you need to leave the country quickly. More than anything, for health reasons.
I was in your place once, and lived in Mexico. Being young, I thought I could do anything, and even worse, eat anything. I got food poisoning from one of those sidewalk vendors who had the best smelling food ever. It was not the run of the mill food poisoning that I've had a few times: it was blood coming out both ends food poisoning. (Sorry for the details.) I was fortunate that I had a good support system who nursed me back to health.
In your case, being here more or less alone, what would happen should you get dengue or malaria? Who can you call to help you get out of jail if you are in a car accident? (The police can take you into custody until they determine who is at fault.) What happens if the Dominican goddess you met at the bar has an over-protective father?
I don't want to frighten you, and I wish you well. As I said, I did the same thing at your age and have never regretted it once. My perspective on the world grew so incredibly from that experience, more than I got from either of my two master's degrees.
And I appreciate that you are doing your research, including here at DR1. I gleaned lots of good info from this site before making the move to the DR.