Last Fridays daily reading read-If you plan to do it-do it now
James 4:14 "For what is your life? It is even a vapour, that appeareth for a little time, and then vanisheth away"
To quote from the daily reading; Redwood trees last 1000 years. Most other things go relatively fast. The average life span is between 75-80 years of age. That sounds pretty good if you're young, but tends to be sobering when you pass 50. The bible says my life is like a vapour, and vapours aren't known for longevity; just a puff of smoke and they're gone! So why am I still waiting? I don't have forever, get at it!
You say you've always wanted to play the piano. Stop talking about it and start taking lessons! You say you feel better when you exercise. Start jogging! Or that you love the taste of homegrown tomatoes- grow some.
Think you're too old? Not a chance. So get out of neutral and get going. Put your life into God's hands and let Him show you what He can do with it!