Quiet Time Coaching: "How not to be a spiritual pushover", Psalm 62

Sometimes we feel spiritually strong. We'll take on all-comers. On those days I read Acts and can see myself backing up Paul as he preaches to the baying crowds. I'd be happy to keep him company in a Philippian jail. Not always, though. The days are all too frequent when I feel weak. On those days I avoid Acts. What to do on the 'weak' days?