I dreamed that an old fairy told me that I could only live to be over 60 years old. What does this mean?

This shows that you care about your life, your happiness and even your life span. People say that fate is predestined, but I don't think so. The length of life also depends on your attitude towards life, psychological quality, endurance and so on. So in fact you don't have to worry about your dreams at all. Relax, what's wrong with 60 or 90?