What do I do now?

My brother died on Saturday. He lives in Hawaii and I live in Illinois. I won’t be able to go to any memorials. He is being cremated anyway, so it will only be a memorial, not a traditional funeral. The memorial service is TBD as it could be done any time. Not sure if any of my siblings will be going.
Anyway, I just feel lost. I know all the details now. Been talking to my family a ton. I just don’t know what to do now. I don’t know how to process this. He was always so far away anyway, it doesn’t feel real at all to me. I’m someone that needs closure. How do I make it feel more real?