not at all. it's called learning. as a child you learned what you are capable of and made mistakes and got hurt. as an adolescent you tried new things and sometimes your succeeded and sometimes your didn't. you developed. as an adult you never stop learning.
in a relationship, its somewhat like looking in your dictionary for a new or different word to use. you never really know what you will find and sometimes what you taught the meaning of a word was out context for how you intended it to read. you didn't throw anything away. I don't think one should think that way if they plan on being successful.
