Help!!! I’m super stressed...

Okay, so. On Wednesday I have a swim meet and I’m not at all ready! I’ve been swimming since I was seven, and I’ve always been pretty good, but never always on top of everyone else. So my summer coaches signed me up for an IM (A combination of the four strokes.) and I’m not sure how good I’ll do. I know meets are not all about winning, but about beating your own time, but I still am so stressed about how I’ll do... I’ve never competed with an IM before.

And on top of that, my coaches signed me up for freestyle and breaststroke too.

Does anyone know what to do? I’ve talked to my coaches about it already but they’re telling me “to get out of my comfort zone” and try new things.

But I’m really not ready for an IM. I’ll take breaststroke and freestyle, I can do those, but I sure don’t want to do an IM.

What do you guys think I should do?