18 year old on whether to buy a duplex or house for house hacking

[Justin Chercoles]

I just turned 18 this weekend and would like to know how I should go about buying my first rental property which i will house hack for the first year or so. I have $15,000 saved up and will continue to save up. I have three question first one is should I wait to save up more money and wait for the market to potentially go down? Should I house hack a duplex or a house first? Should I use a FHA loan or a VA loan.

Also, here where I live in Florida the market is on the medium to high range and I will be using my family member to co sign for me since I don't have enough in my past two year income tax.