Any ways to cope anxiety and depression for my dad's upcoming funeral?

His funeral is this weekend coming up and in my whole life I only been to his best friends and my grandpas memorial service but my dads will be the 1st burial I will be in. A lot of people from my dads job will be there so I feel it will be overwhelming. I also have to finish putting photos together for the memorial service and im getting so much anxiety to where I can't sleep

Updates
+1 y
I also think its sad because few of my friends know what im going through and they said if I ever want to talk I can reach out to them but I have messaged them and they don't even open my message and keep posting stories and constantly online just ignoring me
Updates
+1 y
I not only feel alone.. I am alone and its so depressing to not have someone there for me
Any ways to cope anxiety and depression for my dad's upcoming funeral?
Post Opinion