Perhaps past regrets have choked out your
confidence in Christ, if so—determine not to give
up—but to give
Him another chance. You may be like Paul, Moses, Naomi, Hannah, Sarah and Abraham who saw the Lord use them much more in the second half of their life than the first half. As long as there is breath in your body, you have the potential to be a bold witness for God.
Jesus does not cut off those who trust Him, but leads them down the path of productive Kingdom living.