Just want to say I've been there, that hollow feeling. I,ve read many things, am big into meditation have learned tons. That hollow feeling sometimes is the idea something needs to be a certain way that your mind has made up. I'm not saying that's the case in your situation. What I'm saying is be cognizant of the many things it can be. The loss of an idea, the loss of something you were really attached too. Try to see the other side of the situation if possible.
Believe me this journey is not for the faint of heart. You will learn things. Sometimes you will be drug kicking and screaming but you will learn things or you will regress.
I heard a saying once that is always with me. "Your home is your journey, and your journey is your home". Now think about that.
You are doing great, but don't be afraid to do greater.
