I'm thinking of quitting on short notice.
Why would you quit on short notice?
I shouldn't work so hard if I want to live an happy life.
Even if you want to quit your job doing so on short notice will ruin your reputation with this employer. If you must quit give a standard two week notice.
I don't like people.
I understand that you don't like your coworkers, but you still shouldn't quit on short notice and leave them hanging.