kml, gave you a good idea...call your dad's bluff. You don't want him having that money in his possession too long or he may very well use it for himself. It would be interesting how your dad would take it if you did call his bluff.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
