I am so very sorry for your loss. I lost a brother when he was 18. All those years ahead of him and he was the best of us. After many years it's still unfathomable that he's gone. No words can appropriately express my sorrow for you.
Lauren said it best
"Talk about him, share stories and memories, don't keep it in, surround yourself with the people that you love, lean on them. Celebrate his life."