Upset by poor work ethic of younger co-workers

Dear Abby: I am almost 62 and struggling to get through the day at work. It’s not because of the work itself, but I am extremely unhappy in the work environment. I have been here more than 20 years, and I have a real problem with the work ethic of the younger employees. They come in to work anywhere from a half hour to two hours late. One of them takes hour-long breaks and two-hour lunches and then leaves early. Another comes to work and complains nonstop about her drive, her ex, and all her aches and pains. (She just turned 40.) I go home every night frustrated and so stressed out I snap at my poor husband. I really want to retire.