Doing more for others than you do for yourself is a mistake. The best way to cultivate generosity is to practice self-care. If that means taking time off work, going on more holidays and splashing out on creature comforts, so be it. Anyone who accuses you of being self-indulgent doesn't have your best interests at heart. They are more intent on having their needs met than seeing you thrive. Most people in your social circle do want you to thrive and will applaud your decision to put yourself first.