Successful people tolerate critics to teach facts of life that conflict with the beliefs of unsuccessful people.
When you're going through a rough time and you start to wonder where God is, remember the teacher is always quiet during the test!
No Bible study is ever a waste of your time. If it doesn't bring you what you want specifically, it teaches you more on the macro level.
The adage I am using in Deeper Bible is "Teach a man to fish; feed him for a lifetime". Happy fishing.