1. As a third-grader, you will probably need to sit out of recess.
2. I don't have actual good advice
3. I use a VPN for work when I work from home (which is 4 days a week at least). It allows me to connect to the internal work sites. Intranet, i.e. Sharepoint, etc, report servers. But certain external sites actually block it. For instance, I have to invoice Comcast, and their site blocks me when I'm on VPN, but allows me when I'm not. There are oddities.
4. I don't actually have good advice.