1)As a graduate how would I go about completing the pre-reqs for med school, would I also need to pass English literature subjects/any extra courses?
Possibly. Some schools have an English requirement. Some schools require biochemistry or statistics beyond the biology, gen chem, organic chem and physics requirements. You can enroll anywhere to take the pre-reqs, but you want to try and take your courses at the most rigorous institution available to you (that you can also afford).
2) Since my degree was in abroad where we didnâ€™t utilize the GPA system, is there a way to get my marks converted?
There are some services that do this. Your best source of information might be to contact a local university and ask them what services they use to verify foreign degrees/transcripts. However, many med schools state a preference for seeing that applicants have completed at least 90 credit hours at a US institution. Because of this requirement and the difficulty of getting foreign degrees evaluated/accepted, many people with foreign degrees end up doing an entirely new degree in the US. You may want to contact some medical schools that you are interested in and get their opinion, as not all foreign degrees are treated equally - I think it may be a little easier with a degree from a English language university.
3) Is it possible to work and attend school fulltime and still attain satisfactory marks? Based on my calculations, im assuming I can complete the necessary courses in 2 years( 2 subjects per semester and one during summer)
If you are only taking the pre-reqs, you can do them in two years. Keep in mind that you will not want to apply until you have taken most (if not all) of the prereqs and the MCAT. The application year adds another year on before you actually start med school, so you are looking at a minimum of 3.
It could be tough to take 2 courses a semester and work full time. All of the pre-reqs are going to have 3-6 hours of lab time per week in addition to lecture time. Some of the lab courses (particularly organic chemistry) can require a substantial amount of work/preparation outside of actual lab time. You don't want to underestimate the amount of time required to do well in the pre-reqs. If you're going to try and work quite a bit, I would recommend starting with one course and seeing how it goes.