Parents with difficult dynamics

Is anyone else dealing with dysfunctional parents? If so, how do you manage it? My mother frequently asks me for money every week. While I try to help her when I can, as a single woman, I have my own bills to pay. It's worth noting that she has a husband as well. Recently, she stopped communicating with me and no longer shares her location, which I suspect is because I didn't lend her money last week. She has often made me feel like my worth to her is tied to my financial support. I’d appreciate any advice from those who have experienced similar situations or any tips on how to cope.