You may not like my advice, but I found it very useful.
Get a $hitty job. I'm serious. I don't care if it's Buger King, McDonalds, or at a factory doing something COMPLETELY monotonous and boring. Do it for ONE WHOLE YEAR. I was in the same place you are right now a few months after graduating from college.
And the way I thought about it was: I can join the Army and get discipline from them, or I can become "blue-collar" and learn what life WITHOUT a degree is all about.
At the bottom, as mean as that may sound, is where you learn about all the positions "higher up" that you could do. Don't take it like a punishment, or a place where you belong in the end, but as a learning tool. Believe me when I say that you will learn how to relate to ALL kinds of people, you will learn how to lead people, you will learn how to give out advice, you will learn how to be someone of value. And your confidence alone will transform you.
The trick, however, is to LIVE the life. Go out with the people you meet. You will encounter drugs, and booze, and a bunch of people who don't really have any goals - and who unfortunately don't have the degree you have.
And you will meet people who marry to quickly, have kids without planning, and live life without purpose or place.
Become a beacon of light. You may even grow politically minded.
I did.
But don't tell anyone you have a degree. Be the little guy, innocuous, somebody who doesn't know what's going on, but somebody who learns very quickly.
That's what I went through. And I'm very happy with the results.