Colorado roads are not for me

I have never seen anything like these roads in Colorado. They scare the you know what out of me. The roads are carved out of the sides of mountains like it is the most normal thing to do. There are rarely guard rails, and if you go too fast around the many curves, or veer out of your lane even a little bit, that's it, you are off the road and rolling off the side of a mountain. I was sooo scared to drive, but I was more scared not to drive. Although the Colorado scenery is absolutely gorgeous, I don't think I can handle these roads again!!