Boundaries are IMPERATIVE for a healthy life. It’s about respecting yourself and others. We are humans, and not doormats. We need to be taken care of and not taken advantage of.
You have to option to NOT be a people pleaser. If you are a Believer, you don’t have to be a doormat either. Yes, yes, “turn the other cheek” but maybe God has something different for you to do. Stop and pray before you bend over backwards for someone else and see if that’s what God actually wants you to do.