Apple Watch fitness data on shared account

My daughter and I have an Apple Watch 5. We share the apple account (she is a minor) her watch is linked to her own mobile phone I gave her but when I go to the gym etc, my activity is then linked to her activity as well. is there anyway I can stop her data from showing up on my phone (activity. I don't really want her to have a separate Apple account. She is only 11. while I am closing the rings in half the time its really just combining the exercise and getting confusing.