Advice for adult daughter

No job is worth your health.

Has your daughter asked for advice about this?

You do not say she has, and if she hasn't, you need to tread carefully. You can ask her if she finds her present situation stressful or frustrating and see if you can have a discussion of it with her.

I may have misunderstood your post, but to me, it seems that you think your daughter is stressed, to busy and feeling unfullfilled regarding her work, rather than she is expressing any of this.

Wishing your daughter all the best !

I feel so sorry for my GC. They have to fight for everything. There’s so much competition out there. My oldest two GC have just graduated - and still looking for jobs that will give them a career. It’s the sign of the times.
Fortunately my 3AC are settled, in good jobs, but I am worrying about my GC

Stress is horrible, all you can do is support your daughter by being there for her, reassuring her that she is doing all that she can and though she has been passed over for promotion, and that must sting, she is obviously doing a great job for which she is well paid and of course you are proud of her. Keep pushing the positives. As has been mentioned why not look after the GCs for an evening or a weekend and suggest she books into a spa for a few hours or a day.
If she has friends suggest they go out for the night. She maybe needs to let her hair down.
All the best with this 🌺🙏🏾

Being a mother develops potential. Having a well paid job and children should give her enough to do. She could also find more to do if she really looked. It sounds as if she takes herself too seriously but if she's always been the same......¿?

You say you support her all you can but perhaps if she didn't have your support she'd find she did have enough to do.

Don't take my comments too seriously 😊

If its effecting her life she need to speak to her GP. It's no shame to seek help, if you had a bad cut you pop a plaster on it... She might need a temporary "plaster".
Best wishes to both of you.

She sounds very like our younger daughter, always striving for the next promotion and learning opportunity, it’s exhausting for her and me!

All you can do is support her and maybe offer to babysit so she can take a few hours off and try and relax with friends

What is her job?