Advanced health care directive

I am a 52-year-old single woman with no children. I have three older siblings and several nieces and nephews, although we are not particularly close (not estranged, just not close). This summer, my goal is to put in place basic end-of-life preparations like a will and a burial plan -- possibly long-term-care insurance as well. I learned from my parents' aging and deaths how much help the elderly can need, and how much stress and anxiety that can cause for those who love them. Can you give me some direction before I head to a lawyer? Julia, Omaha, NE