I am planning on cremating my dad.
Why do you want to cremate him? What's the reasoning behind that?
His death has deeply impacted me.
If your father wanted to be cremated then it is good to follow his wishes. What you're doing is right, but if his wishes were for something else then you should do that instead. It's always best to do what the deceased would want.
I don't know about his will. Also, I'm planning on taking all of his money.
You are his son so of course you're going to inherit his property but I believe this is not the appropriate time to think about this matter. You're expected to be grieving for your loss.