I agree with Currymonster. What you've got is a license which says your good enough to carry on learning by yourself. There's nothing that can make a fool of you better than an aeroplane. Take it slowly and safely and be a coward! If the weather's not looking bang-on, then leave it for another day. Oh, and don't forget to go out with instructors reasonably regularly - there's still lots to learn.
One of the first things I did after getting my license is to start an IMC course. They teach you a huge amount about flying accurately and can save your life (although because I'm a coward I've never had to use mine for that yet!)