How can I avoid misusing my free will?
If we're sincerely praying, looking for opportunities to serve Krishna—and weighing various other options against that one overriding and positive choice—we can avoid misusing our free will. We should know that if we're aspiring for Krishna's lotus feet then He is arranging things to strengthen us, to see how strong we are, to see how sincere we are, and to teach us lessons.
Sometimes we appear to get "misused" when in fact we're simply learning a lesson we need to learn; and if we learn it, it will bring us closer to Krishna! The devotees see challenges and apparent difficulties as stepping stones to spiritual advancement. Because of this, they see Krishna everywhere—that His hand is guiding them. They consider nothing to be outside of His guidance because nothing happens without His will—especially in the life of someone trying to serve Him.