Dreams in my pocket

Am I too old to have new ideas? Am I too set in my ways, or to tired to handle a new challenge? What is the age of standing still?  Cause I know that often people change directions but is my timing off? I have big pockets and I want a life full of meaning and of success. The "know how" is there, and my ability is greater. I want to make a difference and I still feel like a flame that isn't ready to go out!  Does life begin with change or does it end?  Ugh!  I need a shrink!