Smitty,
First off, you should have a fund that covers 4 to 6 months of lost wages if you are out of work.
Then pay off all of your other debts, school, etc.
After that, thank your parents for doing a great job raising you and then....
if you have any money left over,
I'd regear, redo steering system, get rock rails and get a locker for the rear.
Then, with time and more cash, get a bigger lift and tires.