Two different colleagues have asked me to swap shifts coming up. I could have done both but one of them I want to keep free in case my family do something for my Dads birthday and the other if I swapped would mean I was working 6 days in a row includingsome 10 hour shifts. I've said no but AIBU as I could have done both of them. I'm a people pleaser and used to accommodating other people's needs even if it's at my own expense so trying to not do this so much anymore.