Life, Destiny And Karma

Life is full of opportunities and replacements but the fact is you can never be your old self as you grow old. As you grow old you leave a good and bad part of yourself behind in past and you are a new person every day. The change of this opportunity of exploring your new self gets so confusing at times because you miss your goodness and badass side or yours because it made you comfortable but We tend to not to give a chance to this new self, why?