Well I'm a parent so I fully understand the get off your duff and do 'something'. An object in motion stays in motion, a stationary object stays stationary. You are stationary, with no driving force to get you moving. And as time goes by you'll be harder to move, that's a fact.
You just finished school, there is a window for getting a good job when you are out of school, don't blow it. Yes, we all want to do what fulfills us. Sometimes the harsh realities of life interfere with that, but that doesn't mean you're locked in forever you can get another job later.
Make a decision, any decision, if you get a job right now you can still plan to do whatever you would like but you are giving yourself a grace period to think it over. Going back to school locks you in for a semester or a year or whatever.
You can get a job and blog, just think how much more creative you will be each day trying your best to get out of that job you hate so much.
One of the hardest jobs is the one you are the boss at. You have to motivate yourself each and every day, you not anyone else. That is why so many, 95%, of home businesses fail, that's one of those harsh reality thingees. Light a fire under yourself.