God just revealed to me the reason for my weariness and, though I did hesitate a moment to share it, for reasons unknown to me at the moment, I felt that I must share it:
Praise Him.
That's it. It's simple, yet complex. I recall years ago when He told me this same thing. "Praise Me," He said. "But I don't feel like praising You. I just want You to answer me." I tearfully and, yes selfishly, replied. "Praise Me," He said again and I began to do so. Suddenly, the pain and weariness was gone, the tears dried up and faded, and He answered the question that I sought guidance on, in the midst of my praise.
I have definitely let my praise waver and slip. When Jesus showed me this just mere moments ago, I felt the greatest leap of joy in my heart. Yes, Lord, yes. I will praise You and the weariness will fall away.
Start praising with what you've got and watch your praise language grow.