Work should be fun.
If it’s not, there is something wrong.
Maybe it’s because you don’t believe in what you sell.
Maybe it’s because you don’t share the values of your company.
Maybe it’s because you simply don’t like some of your colleagues.
Whatever it is, do something about it.
Sell something else. Redefine your company values. Get rid of your irritating colleagues.
Do something.
Make your work fun.