grieving a loved one (or 3)

on march 2, it was the 5 year anniversary of my friend nick’s passing. he was only 12 when he took his life. that was also the 10 year anniversary of my grandfather’s death. then, that morning, my mom called me and told me my grandma passed away, and on February 23, my friend Bill passed away. Bill’s funeral is tomorrow on Monday, and my grandmother’s is Thursday. i need advice on how to cope with so much loss continuously. if anyone has anything, please let me know.