Firstly yes you should quit your current company. Pride in your work, great colleagues, great pay - the absolute minimum for job satisfaction is 2 out of 3. See

Firstly yes you should quit your current company. Pride in your work, great colleagues, great pay - the absolute minimum for job satisfaction is 2 out of 3. Seems like you don't like what you do and the work place is toxic, so all you have is good pay but that's not worth it. Secondly, about moving back to your old job, you may have to factor in a few things - firstly will they take you back? Even if they want you, they might already have found a replacement for the empty position and might not be able /willing to make the budget for an extra employee. Secondly, consider all the pros and cons of your decision not from the perspective of this job switch but from the perspective of the one after that. For example: assuming that you move back to your old job, do you see yourself living in the same city when you finally decide that the time to move on from there has come? Or how does going back to your previous job help you with your long term career plans? Thirdly if you still decide to go back, how people perceive it should be the least of your worries.