How do I stop feeling like I'm missing out?

This is way less serious than the other issues on here, but its seriously been bugging me. In the coming weeks, some of my most anticipated events of the year will be happening. Part of me is really excited for this, but another part just feels like I failed, in some way. I don't have any close distance friends, and it just feels like I'm going to experience this on my own. I've been having trouble with loneliness for a while, and while I have fun with these events, I can't seem to escape just a sink in my chest.

I wanted to do a creative project prior to a release to have sort of an outlet. But I wasn't able to finish what I was trying to do, and now I basically have zero time to do what I wanted. I just feel like trash about this, and that I'll miss out on something I love so much.

Does anyone know anything I can do to make myself feel good going into this?