At some point, you have to actually take the plunge.

"At some point you have to actually take the plunge into the pool. Trying to analyze how water moves and how you can swim effectively by staring at the ripples in the water as you sit on the sidelines will have its limits. The time is rapidly approaching to simply jump in. Once in the water, you will know instinctively where you want to swim to next. You may think you do while you are on the bench, but hypothetical thinking is not reality. Sometimes you simply can't know for sure until you are in the situation. We learn about life by experiencing life, not by analyzing life on the periphery." ~Cary Tennis