Hi, I need help finding out how to edit minutes on a particular workout on my new series 9, Apple Watch.

My cool down was only five minutes, but it says 25 minutes because I forgot to end the work out at the appropriate time.

I’ve only had the Apple Watch and started using the fitness app for a week so I’m new to it. I understand it’s a very complicated process to edit the minutes of a workout, so please show me step by step?

I’ve tried to Google, but the instructions I found did not work on my phone .

Thanks!