Patty, there's not much more I can add to all that's been given you here.
Just know that my heart is with you and your mom... as well as my prayers. If you can get through this, you can get through anything. I have no doubt you'll get through it.
You're doing a wonderful job, Patty. Know that in your heart. No regrets later... ok?
You're blessed that you have a sister to share this with. Share your thoughts and emotions with her, too.
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Psalm 119:105 Thy word is a lamp unto my feet, and a light unto my path.