Anyone else feel kind of alone at this stage in their life?

I turn 27 in a couple weeks. Im on the gen z/millennial cusp. Most of my close friends are getting engaged and I’m going through a break up. Honestly it hit me like a brick wall when I was trying to plan a “girls trip” and everyone said they already used all their PTO for planned trips with their s/o. I just feel behind and kind of alone.