Even if your kids have kids, whenever you decide to be that person God wants you to be, to love your kids like God wants you to love your kids (or grandkids), then start doing it. Whether you are rich or poor, whether your kids are old or young, you can decide NOW to start blessing those people.
And for the rest of your life, regardless of what happened yesterday, you'll be amazed at how much better you will feel and how much family change you can affect in a short period of time. As long as you are willing to change for the better, God can work in you to produce incredible results in yourself and in those you love!
And we, who with unveiled faces all reflect the Lord's glory, are being transformed into his likeness with ever-increasing glory, which comes from the Lord, who is the Spirit (2 Corinthians 3:18 TNIV).
Therefore we do not lose heart. Though outwardly we are wasting away, yet inwardly we are being renewed day by day (2 Corinthians 4:16).You'll be amazed at how much better you will feel!