Still working it out

In Philippians 2:12 Paul tells us to “Work out your own salvation with fear and trembling.”

This verse has often puzzled me since he also says that salvation if a free gift God though grace.  What does it mean for me to work out  my own salvation?

Here is the rub, I carry around within me a lot of baggage that hinders my acceptance of this free gift of grace. Things like anger, fear, selfishness, and hatred of those different than me. So working though my salvation means letting  go of my anger toward someone and forgiving them even if they do not ask for it. It means letting go of those things that I covet.  It means relinquishing control of situations that make me anxious.

God invites me to work out my salvation by letting go of things I want to control and allowing God to do some cleaning in this earthly tent that I call my life.