We are chosen, not deserving. Sometimes, as believers, we go through trials in our minds. Thoughts come that bring insecurities, but our confidence is that we have been predestined to be children of God before the foundation of the world.
When we accept Christ and introduce ourselves to society as Christians we can suffer persecution. The enemy will always look for methods to make us fall. We live in the midst of a war that is not physical but spiritual, but that materializes through people. Resist!