The Extent to Survive

If I were put in a situation to survive with only the clothes I had on and my own instincts I believe I could make it. I'm a outdoorsy person, so I believe getting food and hunting would be no problem. I have read articles about people cutting off their own arm, or eating a fallen companion in order to survive, I do not think I could go to that extent, but I do believe that I could push through excruciating pain or go hungry in order to survive.