I hate my job and I'm so tired of it.
What's so bad about your job?
It feels like I'm drowning in quicksand. I hate it.
If you hate your job, get a new one. Life is too short for being miserable. Most people hate their jobs, though.
Maybe you're right and I should walk out.
Right now there are lots of open jobs. So if you really think yours is terrible, you should look for something better. But it's best not to just walk out of your existing job without any notice.