Honestly to the point where I don't care about the little things at work

Like if I made a mistake at work and my boss or whoever is in charge calls me out for it I don't really care what they have to say because I'm there every single day and obviously I'm gonna make mistakes but like what are you gonna do ? Fire me ? Do it. I'll find another job. It's that simple. I'm not gonna stress my self over some basic ass job any retard off the streets could do. Hell naw.