I decided to go with my mom to the YMCA. She's having a surgery tomorrow so I'm staying with her to help her out 
We did strength training, cardio, swimming, cool.
She then tells me we going to Zumba next. I see it's "good for beginners" so I agree.

Instructor comes in and comes over because I'm a new face, I tell her I've never done it before and that I'm just here spending time with mum, she shows me moves and in that moment I realized I was in over my head. She says it's just like dancing at home (lol). She asks if I like to dance, I tell her I don't dance. She tells me I'll do fine and just pretend I'm at the club and don't stop moving, no judgement zone. Jokes on....me I've never been to the club.. getting anxious, but I'll try something new.

We start I keep up a bit, I'm feeling it, songs are a bit fast tho; a few songs in and  getting the hang of it.. and then she says that the warm up is over.
 I try to keep up but start to lose the ability to make my body -do- the things I'm telling it, wires all crossed and she's moving so fast. She starts to show me extra attention instructing me up close... Which makes me even more anxious..
I start locking up, get dizzy, lose the rhythm, start lightly shaking a bit, I don't want to panic so I decide to call it and leave.

Is there a level below beginner? It's me.

Ive not been feeling well since, brainfog after I got stressed for some reason.

No one is judging me, if they are I'm not worried about it. So why did I freak out, why can't I do anything fun?!
This happens all the time. Dancing and letting loose are my biggest weaknesses. How can I make progress if I can't even take the actual baby steps?

Tl;Dr went to Zumba, have two left hooves, lose my shit.