What to do.

I regularly talk to people in the youth group about their faith and their struggles. When I do, I go home always feeling so much burden but eagerness yet appreciation that God would use a person like me, not skilled, not enough knowledge to walk alongside with people. It drives me crazy because I wish I had the expertise in certain things but I just feel lacking in every aspect. I think to myself - would I give it all up to do this for them fill time and be there for them? Absolutely. They are worth every single minute. To see that I have even a small step in their lives to lead them just a little closer to Christ or have them still in faith even after they go on to college, wow. Why would God use such a person like me? 

Then I think to myself, why don't I just give it all up. And in the practical sense, there are so many reasons why I am obtaining another job or am aspiring to obtain another job, but what am I to do, God? I need help.