Had my worst experience yet today

It was my first time out with my partner instead of my instructor - and to be fair my partner was an absolute godsend through the entire thing but this has really set me back confidence wise.

I got to a roundabout and I don't know what happened, I just kept stalling over and over and over until a huge queue had built up behind me and people were beeping their horn. I was crying and hyperventilating (lol) and it was so stressful. Everyone was trying to go around me and looking to see who the moron holding up the entire road was to see me sobbing at the wheel.

This hasn't happened before and I feel its knocked me back hugely in my confidence. Just feeling really stupid and worried that driving isn't for me because I'm almost 30 and still crying under pressure at a roundabout. Sigh. Similar stories of ridiculous overdramatic behaviour may help me feel better if anyone wants to share.