I’m 59 and I walked the Frances SJPdP fall 2017 alone , Le Puy to SJPdP fall 2018 super alone, last 100k to Santiago again oct 2018 (with hubby). You can do anything! Trust me—-if I can do it you can. Pace yourself..have a day to recover before starting if you come from the US, pack some turkey jerky or protein bars until you are comfortable with walking and eating, buy some stuff to put in a water bottle (not your water bladder) per day that is electrolytes or whatever you may be needing, get your bag carried each day until you think you can carry it or never, buy pacer poles—-ergonomic walking sticks that I swear by...and everyone that I have suggested them to, a sun hat, handsfree uv protection sun umbrella (euroschim?), or both, some cotton hiking gloves from amazon, good pair of sunglasses (Costco has Maui jim’s), get TrekRight
Camino Frances app in your phone, book hotels or whatever your budget allows (I had great luck w booking.com) I needed my own bed, hot shower and a good night’s sleep each night, I booked 10+ miles each day’s to start, make a list of someone to think about/pray for/sent good thoughts to each day—-and ask them to do the same for you, get your dry overnight shirts 2! Not 3 or 4 at Duluth trading because they are more generous and a bit longer for the senior figure, keens were my footwear of choice and it took 500 plus miles to realize I need a WHOLE size bigger to accommodate my smart wool (high merino will count!!) socks, and a backback for the water bladder, compeeds for your “hot spots in your feet...NEVER put these in a blister!!! They will rip the tops off!!! (Trick yo putting compeeds on...put them in your bra or under your arm for a minute or two to warm them up!!). If anyone says that any accommodation you are making in order to make the journey is making you not a “real pilgrim” realize they are simply possessed and get away quickly. The pilgrims of old walked there with no conveniences and WALKED BACk HOME! Go for it! Enjoy! Above said, imho of course.