I prefer to hike early, and plan to arrive at a destination for the night by 1400 or 1500. What do people do once you find an albergue for the night? When do you find other pilgrims eating evening meals? At home, I'd prefer to eat early and crash for the night, but look forward to conversations with others.
What has been said above: Wash clothes and straighten up your gear; be ready for the next day. Then enjoy the rest of your afternoon:
My personal advice would be:
I understand it that you are intending to walk the CF: My favorite. Lots of opportunities for new friends (only if you want to) aka "Camino family", with whom you can make an early supper; most albergues (except in Galicia) have kitchens with utensils to use. You can go alone (or with newfound friends) to a local grocery store and buy ingredients for a joint dinner: This will be cheap and can make a bonding friendship, as well as you can decide on feeding time.
Or have a "Menu del dia" at a local cafe, thus supporting local community. 2 courses/bread/wine for 10-15€
I quite often prepare supper for myself, and offer it to others if I make too much, which I often do, unintentionally
. It may be a soup with tuna/choriso/other or an omelette: something easy (but protein-rich). And always with bread & wine. I normally get away with 5-6 €. If more pilgrims are doing it together, maybe 4-5 €/person.
Read beforehand (paper guide/app) about the place you plan to stay the next day to see points of your interest, and seek them up. There are many (most) places on CF that are worthy to visit... History is everywhere, centuries/milleniums before the "white man" even knew about the existence of any America. Submerging into the culture of Spain may add another dimension to your journey.
Learn a little Spanish (Thank you, please, excuse me, left, right, straight on) to start with. It will portray you as polite (important in Spain), and you can ask for directions. The Spanish are very polite, and will expect the same from visitors. You may end up with Spanish friends...
Edit: And
never forget: Spain is a civilzed "1st world" democratic country: It is also a historic and cultural landscape unlike most other countries in the world, and you can also buy anything you need, for less than at home and usually of better quality.
You are in for a treat,
Buen Camino!