If your reservations are only rooted in abstract anxiety/self-doubt, and not concrete reason why it wouldn’t be good for you, DO IT!!! If someone thinks you’d be good for an opportunity, believe them
Even if it doesn’t sound like the most exciting plan ever! I think it’s so easy to get stuck in hermit mode if you enjoy your own company. Also it’s nice to be invited to things and the more you say yes the more people will think of you when they’re looking for someone to invite