Summer depression - worse than winter depression?

I scrolled past a tiktok that said this and honestly yeah. I feel extra down during winter too but at least I have school and work and it's quite busy and you can start fresh. Summer depression is just sad and alone. I try to plan in as many days of work as possible, but all our customers are on vacation so barely get orders which means the amount of days I work gets cut down significantly. And then I'm just there, in my room with nothing to do. I can work on music, I can catch up on movies and games, and sometimes I get a burst of energy to do so. But most of the time I feel like a slob with nothing to do. I do go out sometimes, I went out yesterday and had a grand time on my own! But then I get so exhausted again. 

I don't really have friends to hang out with, I do have a friend but we only meet up once every two weeks, and my other friend is a work friend so we really just hang out at work. I have my girlfriend but we're long distance. It all feels so empty, and while it's all vibrant outside and everyones having fun I'm just rotting, which I haven't been used to every since getting back into college and working at the same time. Blegh, I was hoping I'd have a group of friends by now. 

If anyone has any ways to make summer more fun I'd love to hear it! Or if anyone experiences the same, summer vs winter depression? 

Here's a picture of this mascot i passed yesterday that gave me whiplash thinking it was triple T for a second