Elaine,
Welcome to the Forum. You will find much useful information in these topics for planning your walk. Ask lots of questions since most pilgrims enjoy offering advice and sharing their tips. Be sure to check out this thread compiled for us aged
Over 60 >>
frequently-asked-questions/topic12014.html.
Start by walking slowly and very easy for the first week. Daily distances cited in the guidebooks are not sacred; easy does it. Be a snail; slow but, determined. Consider the topography and the weather plus your health and pack weight as well as personal strength and ability to endure.
Watch out, the Camino can be very addictive! I first walked the CF when 65 and now at 74 hope to return for my 9th complete camino later this autumn. Hope springs eternal.
Carpe Diem and Buen Camino,
Margaret Meredith