I want to quit but I feel guilty of not completing it. I might miss out on opportunities in future. I might have a feeling in future "Only if I had tried a little harder..." But at the moment it's making me depressed. I procrastinate and finish assignments at the last moment.
However, I studied Japanese and was able to leverage that to get a job that enabled me to travel.
It is probably good to have something lined up, but you should really use your life for: things you are enthusiastic about, things that help people, and that give you love and happiness. Only you can decide for yourself the best route, but I do have an idea for you; you can always ask for loans and use the money as you see fit... perhaps your next loan you can use to buy some real-estate to fix up and rent, or start a small business if you have a solid idea. The ability to get some seed money before you gracefully walk out the door might be just what you need to get you over the edge and into the life of your dreams. Something to consider.