Hi SandyFeet,
You are well set up if you are a Hiker and mountaineer 'by previous experience, hobby and enjoyment. You are aware, and have, the fitness, simple organisational requirements to do a 'few days away in nature' and you have some well used tried and tested vests, pants, socks, raintops and shoes (boots) with which you are comfortable and trust.
Yes, read the guide books, mark up what you see as a 'must do/see' or photocopy pages (double sided).
Especially if you do the Frances, is improbable you will get lost.
Yet, whatever route and path you take, keep an open mind and faith in what you now know (experience of outdoor pursuits) and allow yourself the time and communication with fellow travellers, the environment and the spiritual purpose for which the CdS is intended.
Whether you are Christian, religious, of another faith, agnostic or atheist openyour mind to experience humanity and relationships the way we would like to see them in our 'real' back to work lives.
Enjoy, I'm sure you will. Go with an open heart and willing spirit. You will begin to understand why you are doing this walk.
On my first day of rain I saw a signpost, 850km to Santiago, and I thought what had I let myself in for. The idea was 'frightening'. I still have the photo to remind me perseverence and humility will overcome. Too much planning means too little use of initiative and making people interactions which makes the experience all the richer.
And yet, if you are to do The Way from SJPDP do not exagerate to start, make sure your feet and self are OK every day. Nurture your feet, legs, mind and body in that order.
God Bless, be positive (which I'm sure you are) and look on the bright side and you will have a grand time.
Wish You the BEST,
Valdis.