Here are a few books to add to your stack of things to read regarding aging or life in general. Since I try to make sure everything on the list has been read or listened to by this author, it seems a bit small–but being an active, happy elder gets in the way of thoughtful reading at times.
Second Wind Dr. Bill Thomas
Fear, Essential Wisdom for Getting Through the Storm Thich Nhat Hanh this is of interest to me because of what he believes is the source of all of our fear.
No Death, No Fear Thich Nhat Hanh
Essentialism Greg McKeown (an essentialist thinks almost everything is non-essential
Care of the Soul Thomas Moore
Consolations: the solace, nourishment and underlying meaning of ever day words David Whyte He also has several other books worth reading
May you find one useful bit of advice or turn of phrase that helps you in some way.