Feeling lost now little one at school

I'm a single parent to my 4 year old who started school last week. I work over the weekend and one day in the week and I'm feeling lost with what to do with myself on the days she's not here. I get sad making my lunch because it's just for me, and as much as the mess used to drive me insane the tidiness and quietness of the house feels eerie now.i don't like it at all and miss my girl ☹️ besides from cleaning and errands what do you do to fill the time? I don't have friends in the area to meet up with and not going on outtings with my little one is getting to me already. I thought I'd love the peace but I'm finding it the opposite 🤣