Well, I guess you could look at those moments where you lost track of the great JC as your greatest moments of learning? Like, those moments and experiences in which you kinda put your faith on the back burner are the ones that you look back on and think "wow, I can't believe I did THAT or even thought of doing THIS." But then you see that maybe you went through that experience without even realizing that Jesus was actually there with you, and He's the reason why you are still here and able to consciously think back and wonder why you lost track/went off the right path. Also, I feel you gain some of your greatest strength in your darkest moments, or shortly thereafter when you decide to cling back to Him. The lessons you learn in life from various experiences can also help you relate better to other people at times, and sometimes help them out if they're going through the same thing, which is a good reason why I think everything happens for a reason. In addition, God gave us free will for a reason. He watches us kinda slip away, but His love always keeps you coming back and asking "why did I think I could do this alone?"

Hopefully I didn't bunny-trail/unicorn-hop too far from the point I was trying to make.