This isn't part of my main job (where luckily I'm never asked to present) but a freelance offer that has come my way. I would be paid essentially for a day's work but to prep for it would take several days plus it's not for a few weeks and I know I'll spend those few weeks feeling anxious/terrified. I haven't said yes or no yet and I'm already anxious thinking about it. It's on a topic that I am an expert in and would normally have fun talking about. If I wasn't so scared I would love to be the type of person to do it. But I'm not! Even in group meetings on my small team, once I've said my bit I don't tend to interject afterwards. I'm always nervous about speaking in groups and now this would be a presentation to 500 people!
I did think for a while maybe I could do it but now I'm thinking of saying no and feel like a failure for not having the guts to do it. I know I probably need to step out of my comfort zone but this feels like such an extreme leap and it seems like a lot of stress for not much gain apart from the prestige.