Feeling pretty down right now

Brothers and sisters, I'm kind of a loner, I suffer from PTSD and MDD. I am a likable person (I think) and I invited everyone I could think of over to my house for a BBQ, smoked pork butt, smoked chicken and a fire with s'mores and plenty of beer. Everyone has cancelled on me... Food will be ready in an hour and nobody is going to show up. Feeling like I'm just a fuc*ing loser...