Hi @MDT. You're not my partner are you? 😁 She has the exact same issues at work and gets so frustrated with some of the things people do and say at her office. She does take a lot of pride in the work she does and it really gets to her when other people seem to have such lower standards and really don't seem to want to do what they're paid to do. The petty and childish behaviour doesn't help either. Some days she rings me to vent or comes home so fed up.
So I always try to listen and reassure her that none of it is her fault and it just reflects on them and not her. But it just frustrates her so much working with some people who don't want to do what they're supposed (and paid) to do. So unless she is just telling me what she thinks I want to hear, It does at least help reduce the frustration to tell me about it and be reassured that is sounds just as childish to another person. So its great that you also have a partner who is supportive and you can talk to.
When she comes home after a day like this and we talk about it. I'll wait a little bit and then try to suggest doing something I know she enjoys. Just so at least she has something to relax with that night and have fun with. Some maybe that may help for you as well, just go do something to enjoyable to relax when you get home from work, even if it's just to go out for a nice meal, or watch a good movie with a snack.
Her only other solution is to eventually look for a new job, but obviously that's not something you can keep doing. My own way, back when I working was just to tell myself that I was more than happy with the standard of work I was doing and that if other people were going to behave in ways that I found 'unproductive' then I was just going to focus on how poorly that made them look, not just to me but others as well. And try not to get dragged down towards their level, so I could always hold my head high knowing I was being for more professional than them. Control what I could control I guess. I couldn't control what people did (If I could, they wouldn't have worked there) but I could control how I reacted.
I guess, without naming names, you could talk to a manager and/or HR about some behavious that are making work difficult due to ...x... reasons.
But I do hear you. I've always said I never minded going to work... it was just some of the people there that made it hard!