You don’t have to wonder what your purpose is. You are a vessel for love, ordained by the very breath of God, the source of all love.
Follow what allows you to breathe more deeply, more fully, more completely. Be present. Do what enlivens you. Sit with what refreshes and restores you.
You need not worry about WHAT you do; be aware of HOW you do it. Are you motivated by love or fear (greed, anger, vengeance, jealousy)?
And if you would help another to breathe, teach by example; you cannot breathe for him. You can love him as he is. That is your gift to give.