You need hobbies or this life will eat you.
I see so many posts of people feeling lost while living the car life. Here's a list of hobbies if you find yourself sitting in your car all day.
Fishing is my favorite. The rod breaks down in half and can easily be stored by your back windshield. Takes up a lot of time and is relaxing. Sometimes ends up feeding you for a couple days.
Get a movie pass. I pay $30 a month for unlimited movies at the theater + discount on food and free $5 a month at the arcade (i love arcades). Its great for the summer to escape the heat.
Volunteer where ever you feel comfortable. Animal shelters, human shelters, food banks, etc. Leads to friendships and future opportunities. Don't be afraid to tell people your situation if they ask where you live, it often leads to people wanting to help.
National parks. They are everywhere and amazing. A lot of them are free and most are cheap to get in. Even if you dont have national parks you can find woods to hike in.
Theres obviously so much more you can do but this is just what I do. Get out there if you feel your just sitting in your car all the time.