I have a very similar problem! I encourage people to talk about themselves and then wind up feeling disgruntled when they never ask about me or stop talking. I do think that 'talkers' are drawn to people who are more quiet-- we put up with them. A person who knows how a regular conversation should go will avoid the overly talkative and quiet (this is my theory as someone who doesn't know how a regular conversation should go).

I am still trying to figure this out too, so I don't have very good advice, but I wanted you to know that you are not alone. The problem I have with talking about hobbies is that I will let the other person tell me everything they think about X, even if I do X too, and not say very much about how I do X myself.

I am trying to insert more information about myself into my conversations, but I am not sure where that will lead. It's a lot of work to change a conversational style!