I've been in my job for a year and I love the job and the work. But my colleagues are all unfriendly, cold, rude and self interested. I'm constantly trying to be kind, thoughtful and supportive of them all (not in a cringey over the top way or anything) as I've had to train some of them to do something complicated. If I have to work directly with anyone in my team they're usually spikey and difficult. My line manager usually cancels our 2-weekly check-ins last minute and has no interest in me. Another recent new starter feels the same way - all the staff seem to be like it with each other, so I don't think it's anything I've done wrong.
I've found it quite upsetting and disheartening. I'm not looking to make friends at work, but most teams I've worked on in the past have tried to be cooperative and supportive of each other professionally. Makes work a nicer place to be.
Any advice on how I could try to care less? And basically be as cold as them, without feeling bad?