Congratulations! You have discovered the secret to success! When I graduated high school I had a 1.9 GPA (I know, I know)...then ten years after high school I discovered community college. I also began to take education seriously. I was able to transfer to a University of California school with a 3.8 GPA and it was "Katie bar the door" from there. The one piece of advice I can offer is ...don't get burned out. Keep your eye on the prize and know that it is a goal of acheivement and not of time. For a while I kept thinking...another year of this and another year of that...but then all of a sudden you are sitting in a classroom...your classroom. But it does take time. One of the side benefits is that your daughters will see what it takes to become a college graduate and will be better off for it.
As for what you will teach...no need to worry about that now. What I hear is that high school teachers can't understand why anyone would teach middle school or elementary school and elementary school teachers can't imagine teaching high school or middle school and we all agree that middle school teachers are just nuts! :wink:
Congratulations on becoming a teacher. Look, listen, and ask and you will go far! 8)