Hearing all that s**t about how he's in a better place doesn't help in the moment. No matter how true it is. Later on, you can take refuge in that - but right now, it's hard and that's okay. It's okay to cry and be sad. It's okay to not be ready for the funeral. In some ways I don't think you can ever really be ready for a funeral. The important thing to remember is that it's okay.
Life happens. And people die. It hurts, yes of course it does. But just remember not to bottle it up. For the first little while. surround yourself with people who let you grieve.
Just don't stay in that state of dreamlike denial for too long. As much as it's hard to believe, when you finally tell yourself that yes, he's gone - it'll be a lot easier to begin the process of learning to live without him.
Don't isolate yourself too much. A bit is okay because everyone grieves differently and sometimes you need to be alone. But not 24/7. You have people to help you through it
And I'm here if you need a new perspective.
Good luck at the funeral, sweetheart.
My love to you and your family.