It is a lovely thing to grow old as an artist.
Sure, the mirror shows the time passing. But, in your heart, you never age. There is always another creative adventure to chase. A song to write. A sculpture to build. Always an exciting new venture to awaken to each morning.
A new ache or physical change is just something to adjust to, to work into your routine. Matisse designed an entire chapel, including the stained glass windows, while bedridden during his last years. When her eyesight failed, Georgia O'Keefe turned from a lifetime of oil painting to pottery.
At this time, more than ever, the life of the artist is the art. Each day becomes a poem comprised of a lifetime of habits - of seeing, of designing, of making. Life and art become the same thing.