I would advise you to write, my dear friend, because with your active nature, solitude is simply intolerable to you, and after some time your solitude would become perhaps attractive if you were to people it with creatures of your own fancy.
“You hope that your teenage self would like and forgive your 50-year-old self.”
“Be careful how you spend your time: Spend your time in nothing which you know must be repented of.”