raj mate, thats sad news about your old man
i hope they can do something for him.
when i was younger my nan and grandad died within a year of each other and i was so upset about it for a long time. but the easiest way i got through it was to get my bike out and go for a ride, whatever time it was. i've been into bmx for years you see and its something i love to do and something they loved to hear about.
i'm not saying to go ride a bike, just stay focused on the things you love to do, keep busy and you might find it easier to come to terms with it that way too?