When you committed your life to Christ, this was a choice you determined to make. No one can do this for you; following Jesus is a personal commitment and a personal decision (Joshua 24:15). For many, this is the only choice they will make. In reality, we must choose repeatedly throughout our lives to follow Him. Being a disciple is not a one-and-done kind of deal.
We choose to commit our lives to Him, and then we must spend the rest of our lives choosing to follow Him because following Jesus is a choice we make every day (Luke 9:23). When the rubber meets the road, many choose to take the off-ramp. Making a one-time decision is easy; a lifetime commitment is something exponentially more.