I have to agree with leosha, this time of the year can be miserable if we want it to be. We really need to be more caring at this time of ourselves, and also those who we live around.
The problem with stress at work, is that, we do not know how much is work stress, and how much is our own stress.
I find that I can hold my own with bosses now, because I do my job as best it can be done, and tell them so.
The pity is, I can take longer to do the job, because somehow it has to be just so, while others just do it and make mistakes, which can go un-noticed, until they cause big problems.
Sometimes, getting it right is the best way, it took me a long time to learn that one, in fact, a lifetime
This link may be of help on stress;-
https://www.mind.org.uk/Information/Booklets/Mind+guide+to/The+Mind+guide+to+relaxation.htm
take care,
ste