Today I've decided that I am going to quit doing work at my job.
Why? Is there something you dislike about your job?
Everything, the only thing I enjoy is the pay.
You should still try to be productive even if you don't enjoy the work. You could get fired otherwise.
I know, I'm just saying I'm going to do nothing.
If you're just saying it out of frustration and don't mean it, that's fine, but you should focus on your work when you're on the job. If you're trying to find a new job it's better to keep at it and give notice when you've got something lined up, rather than risk being fired and unable to find work.