I don't think you can hope to get the right answer for this. A dream is an expression of the internal self free from influence. Fear and your reaction to that fear form how your dream progresses from moment to moment. You being ready to start again has a lot less to do with your anxiety being absent than the way in which you process your anxiety. Your response to nightmare-aspects dictate whether the dream continues down a path of darkness or you can chose to direct it another way.

Are you ready to return to lucid dreaming? I think you never should have left. In my opinion your logic was backwards. You have the opportunity through dreamwork to find new ways of bringing your anxieties back into balance.
I agree and I think that I didn't really express my thoughts correctly. The anxiety didn't just go away like this, there was a thought process that finally led me to a change of attitude - scary things happen when there's fear and that applies to both dreams, reality and even paranormal if you believe in it. Running away from fear makes it worse while facing it makes it go away. But also I think that when there's no fear to begin with scary things may not appear and that's what I thought happened in this dream. So I let go of fear in real life which I think allows me to let go of fear in dreams.
I wish I never have left but then on the other hand perhaps when you're young, inexperienced and freaking out you can do yourself more harm than good.