I'm going to summarise what I have learnt here:
Keep work in its place. Don't over identify with it, don't let it take over, don't regularly work over contracted hours. Learn to compartmentalise. Have other hobbies/interests going on. Schedule things to look forward to
Be realistic - understand what you can change and what you can't, how much you can do and how much you can't, don't worry about the things that you can't. Think about worse case scenario vs realistic scenario. Live in the moment
Keep things in perspective- eg..
Redefine your benchmarks: Success means you and your loved ones have their health.
Remember that you are a cog in a bigger machine and you are replaceable at work.
Celebrate your achievements when things are going well.
Movement and self care- exercise, yoga, bodywork, therapy, taking vitamins
Stay organised generally, learn to prioritise well, have good routines
Build a support network - friends, colleagues, therapist, people to confide in
Be kind to yourself ; enjoy home comforts, lower your expectations
Move on if it's not working. Keep a back up fund as a buffer in case you need to leave quickly