I recommend that you carefully melt the ends of your cord with a lighter so it doesn't fray and unfurl over time. You wouldn't want your hard work to undo itself!
Whatever happens, her life has been better with your love and care for her. She knows what being loved is like, and that alone makes your efforts worthwhile.
To prevent the pot from being knocked over, a lower profile but wider, heavy clay or ceramic pot is recommended. Cat mint is a resilient plant that will handle repotting well.
I recommend that you carefully melt the ends of your cord with a lighter so it doesn't fray and unfurl over time. You wouldn't want your hard work to undo itself!