a. dont place a thread in a common board if you only want a small handful of people to answer you, thats what PM is for

b. you fail the address the biggest factors here, do you enjoy your current job and is being a doctor something you would rather do over current situation. also factor current age and what it would cost you non-financially to do this. is there anyone you have to provide for? can you provide for them while attending school full time ....

if i enjoyed my current job the answer would be a resounding no ... good enjoyable jobs arent as easy to come by as one might think