Sorry to hear that CM, Can I ask why you left your old job?
Reason I ask is that, I left the previous job after 3 years there because although the job was fantastic, the money was poor.
The new job I went to was a daily screaming match of arguments between the staff there and I felt nervous even going into work as the place was so unprofessional. There was nothing to be done to make it better, I chatted to my boss who said they were all very set in their ways and that things weren't likely to change, so I'd better just get used to the noise. So I said Thank you, but it is not for me.
After 3 months job-hunting, I have luckily been contacted by my previous employer to ask if I would like to come back, with a pay-rise.
Could you contact your old boss and see if you could return to the old job?
If you do decide to leave, just make sure you budget well as you will not be able to sign on for a few months. And mentally go through how you will explain your reasons for leaving in an interview.
If I've learn't anything from this, it is that life is too short to work for a company that you absolutley hate. I was in tears at the end of each day wondering how I could get out. Luckily, when I gave my 1 month's notice, I suggested to the boss that they call up their second choice from the interview process, and see if they would like the job still. They did and were able to start within 2 weeks so I was released early.