Hi taraz. i feel for you and obviously the pressure has been building up. I am sure whatever you have to do it will just cover for a short term. I was forced to do this years ago and moved form one job straight into the other working a straight 12 hours a day. You actually reminded me about those times and they weren't that bad in the end as it all worked out.
It will be okay if I must as it will still be a decision of choice, even though there is a need attached. I have worked very long hours for a long time so it just means redistributing the workload.