No Reserve Camping

Good evening and merry Christmas everyone.

I’m sure that this post existed in here somewhere but I can’t find it. I am looking to camp from Jan 18-20, and see that the sites that are more desirable (from what I’ve read) are first come first serve. This is my first time to Yosemite… and I’m unsure about that. Is it likely I would receive a campsite just showing up as I know how popular this spot is? Thank you guys.

Also if there are some good experiences that you’d like to share that I could do or some things I should know coming in the winter, feel free to also mention that.

Thanks again guys!