Another choice is to walk until the time is up. My first Camino took me from Le Puy to Pamplona, but none of that was planned. Let me tell you, it was a real thrill to go right back to the same hotel in Pamplona the next year and head out again. I ended up in Portugal, then walked back to Santiago and out to the sea. No plan! Most people want a plan and firm destination. If you are in that minority of pilgrims who don't, why then, that's where you are.
If you want to skip bits, why not? I don't skip. I like to look down at my shoes at the end and know that they have walked every inch of the way. But that's just me. Also, I like flat bits, urbanisations, factories etc. (I get enough "nature" where I live. My ceiling is a battleground between pythons, goannas and possums.) The world's biggest parking lot for Citroens is one complaint of many who do the Portugues. I wouldn't have missed it!
I also don't worry about whether I'm evolving spiritually or acquiring any "depth". If I come home and start getting rid of excess and find myself making changes that should have been obvious before my Camino...then maybe James has been on the job. Of course, if that doesn't happen, then it's no big deal. I wrote the story (linked below) The Thief of Saint Faith about a villain who does the Chemin for the worst possible reasons...and derives an ultimate benefit in spite of massive disillusion just when he thinks he's getting a grasp. I'm a complete amateur at writing, but I was pleased with the idea of saints who, whether they existed or not, can use my very fakery to make me less of a fake.
Back on topic, if there is joy in fairly racing to that Cathedral in Santiago, then race! The joy is a signal to do that. If you fancy yourself as a dawdler, then dawdle. (I doubt you'll ever be able to compete with me there. KiwiNomad tries valiantly, but...) Most people fall in between dawdling and racing, which is probably a good thing.
Really, I just go, and, if something isn't working for me, I can change, either my actions or my head. There are days when even I step out and cover lots of ground fast. But there are seldom two consecutive days like that.