for what its worth, here are some of my thoughts

1st. Nice blog I applaud your thirst to serve God–so often our passion for God is far too weak–so keep the flame stoked with the word and prayer
2nd. Sometimes God is using us and we don’t even realize it at the time–we may never know the fruit of the seeds we sow with our words and actions. We just have to keep sowing and being open to the leading of the spirit.
3rd. One surefire way of being used by God to change the world is to love those in your sphere of influence with a real, practical, dirt-under-your-nails kind of love that is overt and genuine (easier said than done, I know).

I pray that God will bless you and use you to make a difference, in both big and small ways )