Welcome to Mint cswalker
You could have a better start - but remember the forum is there to help you
STARTX in terminal results: server is already active for display 0.
This means that you've ended up with a working system (sort of) but where you should not be
This is, as I think you already have guessed, a graphics problem. In Mint Envy is installed by default so it's easy to install the nvidia driver
First when you end up in a terminal try Ctrl+F7 (the Control key and the F7 function key) This should get you into a GUI, but as you have problems you may get
server is already active for display 0
If so issue Envy and you will be guided through an install of the nvidia driver and then be able to boot into the GUI