"What is the one thing that you can do to improve your prayer life this year?"
This was actually answered partially earlier. Simply, I have to learn to converse with God more intimately. I want to share my heart's desires, my deepest fears and my greatest joys with God like I would a best friend.
I also have to learn to listen patiently and silently. God will speak if I just stop and listen.
The conversation must be a two-way communication between God and I.