Graduating Medical School in a week (Total undergrad/Medical school loan: $739,995)

I am graduating medical school in a week and going into General surgery and decided to look at my student loans and came upon this startling number. My 1st year resident pay is 70k, I don’t have any idea where to start or how to pay off this loan, any advice would be much appreciated. I come from a poor family so I had to take loans to sustain myself and help my family throughout my schooling (approx. 12 years), I did some odd jobs while in school (loading/unloading cargo for a reputable company and security at a club on weekends) but i wasn’t making enough for rent in the city where my school is located and medical school was quite difficult to juggle with board exams, fluctuating day/night/24hr clinical shifts. I could use any advice from anyone else who has been in my shoes. Thank you.

I could include a picture of the loan if mods require it. Thanks.