Many people long to be used by God. Yet many people find this aspect illusive. But God is ready to use you.
Perhaps it starts when God calls us to increase in our effectiveness. Many times, before God uses us, we go through a process of stripping, when things seem to go anywhere but where we thought they would go or should go. It is during these times that we need to assess for ourselves what needs to be eliminated from our lives (eg: Pride).
Sometimes during the times of waiting, it is also a time of preparation. A time when we can fix what is broken and a time to change what needs to change. But eventually we have to step out and begin to allow God to use our lives.
God is ready to use you!