Academics, scientists, researchers – all LOVE their job. In many cases the love drives the work. This means it can take up the time allotted to it. But, if you ask me, that’s the reason why you struggle so much with negative feedback. Your entire life, your sense of self is all bound up in your research self. There are few other interests to drive your intellect. To take your attention. To pick you up when research is taking you down. So, make sure you have non-work time each week.