Why do I feel like I can't have any fun or do anything for myself without feeling guilty?

Im tired of people always needing me when i can't even afford to take care of my own needs or feel like i can't have fun or indulge without feeling guilty. My sister always wants money for her jail books, my mom always wants money for cigarettes. People always needing me to take them places. I mean im one person and I do a lot. If I decide to be lazy after a 8 hour shift I get fussed at. Like im 34, im an adult. Adulting is hard in a neurodivergent society.
Why do I feel like I can't have any fun or do anything for myself without feeling guilty?
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