It doesn't matter what you've done or what you know or even who you know.

What matters is what you're going to do next and, of more importance, whether or not people are positively influenced by what you do next.

Sure, from time to time, it's fun to reminisce about the glory days. On the other hand, the glory days are not here again until you make it so. And as you make it so you may not be able to do it the same way it happened the last time.

As Dylan taught us - the times they are a-changin'.  

You will need to adapt and accommodate to the current situations.

As Darwin taught us - "Survival goes not to the strongest or the most intelligent but to the one who is most adaptable to change."  

Yes, it is true, what you know is important to a degree.

Better stated, what you know contains potential value. Specialized knowledge is of particular value. The extent of the value of your knowledge is determined by your ability to identify opportunities and do constructive things to convert those opportunities into positive changes [desired by other people].

Your future success boils down to how you intend to put your strengths - that is, how you intend to put your talents, knowledge, and skills - to good use in the future.

Your future success depends on whether or not you can positively influence other people to help you achieve the goals you envision.

Your future success depends on what you're going to do next: positive change happens one action-step at a time.