My greatest fear is not your failure, but your success.
You focus on the depth of your relationship [with God]; let Him determine the scope of your ministry
The secret to concentration is elimination.
Jesus never discipled one-on-one.
There's an old saying that nothing good happens fast. I don't know if that's altogether true, but it does have some bearing on Bible study.
So the first reason for studying Scripture is that it is a means of spiritual growth. There is none apart from the Word. It is God's primary tool to develop you as an individual.