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.
Every day, my daddy told me the same thing. 'Once a task is just begun, never leave it till it's done. Be the labour great or small, do it well or not at all.'
If your happiness depends on what somebody else does, I guess you do have a problem.