I currently have a budget of $1500 total. That number will increase eventually when I get a job soon. I'd like to get to the point where I can make $200 a day. But I don't know where I should start. I'm leaning towards mobile but I'm not sure. I've heard cpa zip submit offers from places like peerfly are good too. I don't where to start. And what CPA networks do I sign up with? And if I do decide to do mobile, do I still need a server? 
I think you need to do some reading!!
First thing - read through ALL the posts in the Getting Started Guide series (linked from the index of the forum). That'll get you started with a solid foundation.
Networks: Sign up with at least 3, preferably 5 or 6, reputable ones. Check the Network/Offer forums here on STM: there's an index of every network that has representatives on STM.
Traffic source: You can do mobile with a budget of $1500, but you HAVE to be very disciplined about your testing. Choose low-payout offers, test carefully, and make every cent count. I'd very strongly recommend running a follow-along and keeping it updated with as much info as possible.
Hope that helps! Let us know how you get on, and if you have any other questions.
Caurmen hits it spot on, and focus on lower payout offers. Things under $4 so you can get as much data as possible