You and your family, and your dad seems like you have been going through a lot. I say give it sometime and be patient with him. I will pray for your dad and you. Stay strong, everything will be okay sooner or later. Don't stress about it and try to find something to do to get your mind off of it. Maybe draw or read or something. Jesus will never put you through anything you can't handle. Be strong and brave and keep telling yourself you can make it through this.