The mark of Jesus is that He forgives and our life with God begins by accepting his gift of forgiveness. We stop trying to earn our own way, trying to be our own god, and depend instead on God to be God. We rest in God's ability to solve our sin problem. God alone gifts to us the gift of real life here and now, and in eternity. Jesus even said the faith of a mustard seed was enough.
Mustard seeds are pretty small.
It's not about us. It's about God. Salvation is of the Lord . The hardest part about becoming a follower is stopping to trust in our 'whatever' to get us to heaven. It boils down to doing nothing and resting in God's hands, knowing that He solved our sin problem for us.