This is not my phrase, but if you're stuck in the past, then you're depressed. If you're stuck in the future, then you're anxious.
Tim FerrissIt is far more lucrative and fun to leverage your strengths instead of attempting to fix all the chinks in your armor. The choice is between multiplication of results using strenths or incremental improvement fixing weaknesses that will, at best, become mediocre. Focus on better use of your best weapons instead of constant repair.
Tim Ferriss