Coming close to the end of Masters and need to make a decision about continuing on to do PhD or not. Please help. My supervisor is very overpowering corrects the same piece over and over so it is never good enough after 6 or more drafts and keeps coming up with more changes all the time. It is very disheartening and demotivating. Is this normal practice? Am not sure if I can stick this for another 2 years if I decide to continue....