Being the best caretaker, mom, dad or friend doesn't mean it's always about putting them first. The nice girl will live her life for others then wake up one day and wonder where her life went. If it fuels you (and you can tell if you feel awake and alive vs. tired and sluggish) then do it. Otherwise, it's time to let some of it go. Make arrangements for help and then use that free time for things that do make you feel alive.