I won't even try but I will share what others have found helpful in the hope that it might be helpful to you. If you didn't get a chance to tell the person how much they meant to you in your life before they died or became unconscious, tell them now anyway. Do this alone or with a close friend, whichever seems appropriate to you. Even if you got to tell your loved one how much you loved them and valued their part in your life, you are free to honour their memory in any way that is significant for you. Jesus wept when he heard that Lazarus had died.
Weeping is healthy and healing of the wound in our life when a loved one is torn out of it.
Tears are salty water just like the saline solution that physicians and nurses use to bathe burns and promote healing. Tears are a tribute to the importance of the lost loved one in your life. Gather pictures and make an album of memories of times spent with your loved one. Put souvenirs in it and notes from friends and anything else that belongs, in your opinion, in this memorial collection. Nobody knows the pain you feel even if they have also lost a loved one.