I’m so sorry for your loss. I can only imagine how you must feel. I have found comfort in scriptures like Job 14:14,15 which remind me that God cares so deeply for us that he yearns for the day when he will bring us back to life on earth (John 5:28, 29). These words fill me with the hope of seeing again the ones that I have lost. I hope that these words bring you comfort as well.
I extend my deepest sympathies to the family. When a family member dies, our pain and grief can be unbearable. God promises that “death will be no more” (Rev 21:4). This may not completely take away your grief. But by meditating on God’s promises, you can find real hope and the strength to keep going.