Hola
Well.. I think you are brave to start your Camino without a plan!
Will it create problems for you?
Maybe.
It all depends on who you are and what you expect.
As the other posts show, you will be starting with a lot of other people. Many who have planned their Camoino for months if not years.
Some will have their whole Camino booked with places to sleep. Most will have a plan for the first 3-5-7 days after which they will adjust their planning to 1 or 2 days ahead.
And then there will be a few who will be camping out or roughing it (if thats a word?..).
One thing that brings options and sollutions.. as it sometimes is in our world.. is how much funding you have. The more you have the more options you will have.
A lot of pilgrims wants to stay at the budget Albergues (hostals for pilgrims) which cost around 5-12 Euros.
But you have private albergues that charge around 12-20 Euros and of course a lot of hostals and hotels.
Look here at this Spanish site to get an idea about what options there are in the towns and what they cost.
www.gronze.com
Anyhow.
Your first 3-4 days might be hectic where you have to be creative with finding a place to stay.
A lot of pilgrims, strangers to each others, share a room at hotels - 2,3,4,5 persons - be openminded and I believe you will find your way.
So prepare yourself to be adventurous and keep your spirit high.
If you are not a young person then pull out the youth in you
And remember:
Everything flows
Flow with it.
Buen Camino
Lettinggo
PS
Oh yes.
It is not a race you are entering unless you make it a race yourself.
Don't listen to much to the people who creates a lot of stress in you by booking far ahead.
There is a lot of stress inducing talk on the Camino.