One thing I’ve had to continuously tell myself over and over again is not to write with a bad attitude. I’m not kidding, if it’s time for you to write and you’re mad, annoyed, or just upset about something it’s not a good time to strike the keys. Stop, put the laptop down, and go do something else.
The problem with writing while angry is that unless it’s a seen that calls for anger or sadness, such as a character dying or a loss another character suffers, it is unlikely that any good will come from writing.
It’s tough to put the pen down, believe me I know, but once a bad attitude enters someone’s writing, it can be hard to continue or complete it. Writing can become a chore at that point and no longer something the writer is enthusiastic about.