Wellllll, honestly this is why I am always spouting about being alone for a long time when one enters recovery from codependency. About purposely avoiding relationships so you can focus on yourself and who you are when you are alone.
One CAN grow and learn about oneself in a relationship, for sure. But it's a lot harder and a lot more confusing, especially when you don't have a strong foundation of self to begin with.
I'm not advocating breaking up with your BF, but you have to know going into it that the work you want to do to discover who you really are is much more complicated and difficult when you are in a relationship.