I did a wilderness survival camp in Arizona as a kid myself. I have had massive respect for nature ever since then. Even with a group of people survival in the wilderness is tough. I remember struggling for days to even make my first fire.
Alone showed me how different survival tactics are depending on your location. I feel like I could survive at least a few months on my own in the Sonoran desert, but anywhere else I would be done for pretty quickly. Cold snowy weather would probably end me on the first night.