Would I be a bad person if I don't go to my best friends memorial?

My best friend of 23 years passed last week and it's been really rough on me the last few days I been okay and getting by. Last night his sister messaged me saying his memorial luncheon is on the 25th. The thought started giving me anxiety, dread, and extreme sadness. Now I don't know if I want to/handle going. Not because I don't love him I do he was my best friend. It's just the finality of everything. Seeing his urn, the reality of 'you're really gone' and having to say goodbye. Like i don't know if I can do it. It's been conflicting me I dont know what to do or If these things are normal. Like I don't want to say goodbye for good cause it's so final if that makes sense. What should I do?
Would I be a bad person if I don't go to my best friends memorial?
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