I'm feeling the same way as you right now, although I've always lived home so that doesn't upset me. I've graduated college and I have a good six months before grad schools starts and I only have a part time job so I feel like such a loser. I'm so used to doing stuff, having school work to do and writing papers. I love that stuff and now here I am with endless days off and I hate.
I hope you can find a good way to occupy your time. I think you should consider grad school if you want keep pursuing education and get a decent job.

Like Curupira said, they don't just look at GPA!