I have never visited my brother grave, what should I do ?

Hello everyone, So I had an older brother who died 8 years ago from a bike accèdent , I was 16 at the time, and ever since I have never visited his grave nor talking about him, Even his memories feel shallow like we don't have any shared memory, I can't remember any interactions between us like he never existed

Now I am coming to a realization that if I visit my brother grave, it would be like a closure that he really died not just only the memory of his dead but not his actual memory

Should I go and visit cause everytime I set a date، I automatically forgot the next day.