Should I speak at my grandfathers funeral

Should I speak at my grandfathers funeral? I’m a teenager and my grandfather died in February. I’m still processing it. The funeral is this spring, and people can speak if they want. I need to let my grandmother know if I will speak so she can take it into account when planning. I have a few siblings, all older, who also have the opportunity to speak. I have always liked talking in front of people, and don’t really get stage fright. I also love writing and think I am good at writing meaningful things. I wrote a small paragraph about my grandfather that would be what I would say. I’m not sure if I should though. On the one hand, I think it may provide me with some closure and be a good thing to do. But I really don’t want to cry in front of people, and I don’t really know anyone in my grandfathers family, so there will be lots of strangers. I have read through what I wrote out loud without crying and not even really tearing up (I’m good at repressing emotions) but I’m not sure what it will be like that day, it would feel so much more real I think at the actual funeral. Also, this goes way deeper into my own problems, but I’m the youngest, and it is deeply rooted in me that older siblings are better than younger siblings, and that’s just the way it is. So I deeply do not want to be the only one of my siblings who speaks. My oldest brother may be considering it, and if he does it I will be more willing. Should I?