It's just a day at a time Can, and when that isn't possible, an hour at a time. So early days for you. I would be worried about you if you weren't riding the waves. The stages of grief are a real thing. Be wary when you hit bargaining. I thought some really crazy things and wrote an email or two I wish I could burn.
I have to say that most of the things I worried about have not come true. Even when OD has disappeared for very long periods of time, he has held up his financial responsibilities (of course not all of them do). I have definitely found my strength. My kids have struggled, but who knows how much of that they would have had anyway. I do see some good things for them too from this.
It's just time. In time it won't hurt as much and the path forward will look a lot clearer. You will move past the shock and the grief and find a much stronger you.