Hebrews 10:32-39 (NRSV)
Do not abandon your confidence
"But recall those earlier days when, after you had been enlightened, you endured a hard struggle with sufferings, sometimes being publicly exposed to abuse and persecution, and sometimes being partners with those so treated. For you had compassion for those who were in prison, and you cheerfully accepted the plundering of your possessions, knowing that you yourselves possessed something better and more lasting. Do not, therefore, abandon that confidence of yours; it brings a great reward. For you need endurance, so that when you have done the will of God, you may receive what was promised.
For yet 'in a very little while,
the one who is coming will come and will not delay;
but my righteous one will live by faith.
My soul takes no pleasure in anyone who shrinks back.'
But we are not among those who shrink back and so are lost, but among those who have faith and so are saved."
Being confident can be exhausting and exhilarating all at once. Sometimes we have to put a good face on not for others but for ourselves. The confidence of those around us can get us far- I know that the belief of others in me has pushed me through a lot of hard times. But it can only get us so far. Eventually we have to put a little more faith and trust in ourselves. It can be hard to do. Losing confidence is easy. Regaining it is far more difficult. Sometimes putting on a brave face will kind of psych ourselves out a bit- it will let us pretend we have it. And sometimes pretending to be assertive does the exact same thing that having true confidence does: it gets us just one step closer to where we need to be.