Hi
@annasofie - Sorry I'm late to the conversation (I get the digest Saturday mornings). I can understand your trepidation; it's ok and totally normal for women. We always have to be on guard no matter where we are. I like to think of myself as a tough city woman with no fears (or rather, more internal fears of self-doubt, not finishing, getting hurt, ect). All of the advice here has been great -- you will find people to walk with, even on days you want to be alone; take a self-defense course to add another tool to your kit; be as cautious and on-guard as you need to be in everyday life, etc. I walked alone, but I wasn't really alone for most of the camino. Even when I had to be forward with new Camino friends and tell them "I need to walk by myself today," nine times out of ten those friends would be sitting at a bar in the next town for a check in. To be honest, there were a few people I met who didn't want to let me walk alone because they were worried for me -- one pilgrim from California who even came out and told me "you're the same age as my daughter, I don't want you to walk this alone, I'm worried for you" and I know he was genuine. We exchanged numbers and I appeased him by texting every few hours -- "I just passed so-and-so, I'm ok." Overly friendly patriarchy? Maybe... but I know he meant well.
I can only think of three times I was nervous to be alone, four if you count the private albergue owner who was way too friendly and wouldn't stop questioning me if I was really married or making it up (because he had a key to my room, I slept very light that night). The first time on the trail that I was nervous was between Valcarlos and Roncesvalles, but only because I was having my own physical/mental breakdown and not sure if anyone would find me if I collapsed on one of those narrow trails on the side of a mountain far from the highway. Not a gender-based security fear, more of a "my God, what have I gotten myself into?" fear. The second time I felt nervous walking alone was crossing the plateau before Hornillos del Camino, but only because the sky turned white, the birds went silent, the ground looked like oyster shells, and I wondered if maybe I had died and was in hell or purgatory (you know, city girl -- complete and total silence freaked me out). Now the third time my spidey senses were going insane was walking from Astorga to Rabanal: for two weeks people had been warning me not to be alone in that section, fellow pilgrims and locals alike. That is the section where the murder happened a few years ago, and locals kept warning me that robbers would drive up and down the highway in that section looking to rob solo pilgrims. I was depressed in Astorga and trying to get my mojo back on that day (which I did), and was dismissing these warnings by reminding myself that I always see other pilgrims walking either in front of me of behind. What was weird that day was that I rarely saw any other pilgrims on the path, only at the village stops. I was truly alone... except every 30 minutes or so a police jeep would drive by, honk, and wave to me out their window. OK! After the third or fourth driveby, I realized they were out there patrolling to make us feel safer and let us know they're nearby. It was comforting... until I reached that part of the path outside Rabanal where people created crosses with sticks and put them in the chain link fence. What kind of Blair Witch nonsense is that? ;-)
The only other advice I would give you is to bring a cheap ring to wear on your left hand. I left my wedding ring at home so I wouldn't chance losing or breaking it, but broke down and bought a cheap ring at a street market in Ponferrada with the hope of signalling non-verbally that I'm not interested, do not approach, to those who are on the Camino looking for... something I wasn't seeking. It worked so well I wish I had done it from the beginning.
Buen Camino! You're going to have a great time.