We cannot come back. All theories of reincarnation are pipe-dreams, false, delusions. It is not true. That is not what God's Word says. After we die we stand before God in the judgment, the God of all souls to whom we must give account.
Death marks the period to our life, the sentence of our life.
What our life expressed has been written. Death is the period. Each day is given of God. Not only is there the fearsome reality of death but there is the reality of judgment. This, too, is universal.