It is not recommended to resign for postgraduate study. It's simple. People have a psychological tendency of "aversion to loss". Compared with the pleasure of getting, losing what you have has a stronger influence. Your current job is yours. Of course, keep it if you can. You said it's not enough to take the postgraduate entrance examination while working. I can understand that the review time is compressed and I have to work hard during the day, so I don't have an advantage. But it is precisely because some people have made efforts that others have not made that they have achieved success that others thought they could not. Besides, at your age, you really don't have to be busy. In terms of life time, the age and brain power are actually golden years, especially after graduating for a long time, and the learning ability is definitely still there. Now should be the most likely time to rush.