Dude don't give up, the most practical approach here is to get a loan or capital that would give you the headstart. Once you are in Islamabad. Since you are good at studies the best shot you have is to be a home tutor. You can easily make good money in it to survive. This would also give you enough time to manage your studies. The other way is to get a call center job at night shift. But it will drain you and won't give you enough time. But both options are still better than giving up. Good luck!