Here are a few general thoughts that might be useful.
Guidebooks
On past caminos I have used
Brierley's guidebook for the CF, and
Miam Miam Dodo for the VP. They are both quite good, although very different.
The problem with guidebooks is getting too focussed on following turn-by-turn instructions. Sometimes these can be misleading if conditions change.
On this section of the CP, I simply followed the waymarks with no guidebook other than daily stage maps to give me a general idea of my progress. That is working fine, but I have no information on interesting sites along the route, such as
Brierley's guides have.
Either approach seems OK to me.
Footwear
On past caminos I have worn ordinary walking shoes without any problem, even in rainy weather. But I have changed my thinking a bit.
On hot days, well-ventilated shoes (or sandals) are best for me because my feet don't overheat and get hot spots/blisters, especially on long sections of hot road tarmac.
But in colder, very wet weather like now on the CP, I think lightweight goretex boots give better foot protection. There is certainly a big psychological advantage in walking with dry feet.
Daily Routine
I eat apricots or nuts as I walk, but every 2 hours (about 8km) I stop for 15 - 20 minutes to eat a ham/cheese roll that I make myself.
Occasionally, if convenient, I might stop at a cafe for a hot drink.
For me it is important to break the walk up into these 2-hour segments to regain freshness.
When I arrive at my accommodation, I always have another ham/cheese roll and some pieces of chocolate before doing my chores. The chocolate is my one indulgence and it has a very positive motivational impact.
Obviously, what works for me may not suit others.
Rgds
Bob M