Thanks for the replies.

I know that focusing on a problem can make it worse, but I hope that's not the case here. Doing some math problems and recalling some memories seems to be a good idea. I'll try that next time.

I do have a set of goals. That's not the problem. Actually I have a lot of them but of course I start with the simple ones. Telling DCs that they're in my dream is on top of my list. The huge apocalyptic all-out battle against an army of alien invaders is a bit further down.

I understand that going with the flow can be interesting, but especially as a lucid dreaming beginner I have lots of stuff I want to try out and I don't want some guy stealing my lucid dreams.