People cannot treat you badly unless you let them. They can't abuse you unless you let them. They can't take advantage of you unless you let them. When you are healthy, you don't attract these people and should one slip past the boundaries by being a little less obvious, you identify and remove them from your life much earlier. Just calling people toxic or narcissistic without you taking responsibility for how they got past your healthy boundaries to treat you badly or abuse you is a victim type of position. Get healthy and these people can't hurt you.