The problem is its so expensive to leave the house

I want to get off the phone but its always so hard to do things outside without spending decent money. Transport costs, activity costs, food costs, it just adds up so quickly. I do like reading so I understand I can stay in and replace internet with that, but I don't want to read 10 hours a day. I want an active, external life but its just so hard to do while wanting to save and invest simultaneously 😞