Quite early on in Jesus’ friendship with his disciples, he was getting them to do stuff. To go out on mission trips, to feed the poor and hungry, and to announce the Kingdom in word and action. And to begin with they just weren’t very good at it. The point was, Jesus knew they needed to learn how to do this discipleship stuff, and for most of us we don’t really learn by reading the theories but by having go in the context of real life.
You’ll never attend enough Bible studies to think you can make disciples. You can’t, but The Holy Spirit working through you can. Quit hoarding information and start sharing what you know with your friends, family, neighbors and co-workers.