Yeah, I'm not even allowed to hold my breath for a 25m lap of the pool where I live. I have to take at least one breath on the way, and there's no chilling out at the bottom breath-holding allowed. :( Talk to your guards, let them know your experience, and if you mermaid professionally, and offer to show them some of your tricks so they know what it looks like when you're doing your thing and what would be an indication you're in trouble.