He himself bore our sins in his body on the tree, that we might die to sin and live to righteousness. By his wounds you have been healed. Peter describes the cross as a completed work.
You do not have to carry your sins yourself. He carried them. You do not have to heal yourself. By his wounds you are healed. This is love that acts, not just feels.
Fear says: you have to manage it yourself. Love says: it is done. Live from it now.