The Long Road to Happiness

I don't quite understand it fully, I may never. I have no idea what the Lord wants from me right now. I want more when I know I should not want, I feel alone and at the same time called to the single life. I don't understand why when everyone says you will feel most happy doing God's will, and I feel that I have opened my life to him, that one can feel so alone.
I don't know what to think or where to turn. I could take action but that presents further issues. I feel like I have found what I am to do, but that to do so will leave an empty void in me.
Lord find me and guide me, that I might find happiness in your will.