But that is true in any long term thing we do is it not? There are natural ebbs and flows in our understanding and development. We have to work through them, continue to do what we know to do and look at our heart and see if there is anything blocking our relationship with Him. That may or may not be the case. Dry does not necessarily mean that there is something wrong. Ask. He has promised to respond, James 1:5. Regardless, we are to press on, Philippians 3:14 – 16.
Hang in there.