Nostalgic anxiety

I'm visiting my mom at the moment, and it feels really weird to be in this apartment where I went through so many ups and downs throughout the years. It's funny how a certain place or smell can make you remember things and make you feel the feelings you associate with the experience. For me it was alright to be here while my mom and sister were here too, but now that they're at work and in school, being here alone, I just feel all the anxiety and stress from school coming back to me. I just feel like I should be doing something, like there's something I need to do that will require a lot of time and energy,  even though there isn't anymore. It's making me edgy.