What we lose from aging is often compensated by what we gain, The issue, in this case, is how these losses and gains translate into one's pool game. Much pool ability is simply talent -- a gift from the gods which cannot be attained or acquired. Experience, another essential asset, can be acquired, but requires sacrifice in other aspects of one's life. What you are seeking is never as simple as a change in your glasses rx. Pool, like everything, begins with innate ability and ends with the discipline required to hone and properly apply your talent. Ultimately, the answer to your question is the same as the answer to many of the great questions. What do you have, what do you want, what will you give to get it?
If it is really what you want, find an epicenter of pool and take a deep long plunge.