alternative post title: how can I grow a thicker skin, so I simply stop caring what my coworkers think or say?
This is really the secret. Many years ago, I learned a wonderful phrase:
Fuck you and the camel that came on you.
Once you learn to adopt that attitude, whatever some idiot says becomes far less important to your life. There will only ever be one person in this world whom you can really control, and that’s you. For everyone else, you can either try to convince them of stuff or accept that they aren’t worth the effort and move on. The latter option tends to get used a lot more.
If you can, just avoid the shitty coworkers. You won’t always be able to; so, when you have to deal with them, just keep the conversations short, professional, to the point, and then excuse yourself. A simple, “sorry, I really need to get back to work” often works wonders. Also, keep work and personal lives separate. Learn to leave work at work, and that includes the people (unless you find someone who is actually worth making a personal friend of). Once you get home, stop thinking about Mr. Shitty McShitface and go do something you enjoy. Work to live, don’t live to work.
I would also recommend taking a hard look in a mirror. Sure, you might actually be surrounded by assholes, at the same time if you feel like exploding at people for every idiotic thing which dribbles out of their mouth, then you’re probably an asshole too. Stop trying to “fix” or control everyone around you and just accept that you can’t. Life gets far easier when you realize that they aren’t your problem. If you’re doing things right, you should be job hopping every few years anyway. Your pay will stagnate and fall behind if you don’t. So, in a couple years, those idiots won’t even be around you anymore.
So, how do you “grow a thicker skin”? It’s tough and takes practice. But, just keep putting in the effort to not give a fuck . Eventually, it becomes a reflex and you’ll find yourself with No More Fucks to Give.