When a problem is unavoidable, the best thing you can do is learn to live with it. Don't pose logical questions when it comes to bureaucracy. You're never too old. Some people just have no contact with reality. Know who your friends are.
Some days are just worse than others.
Just because you're not working together any more, doesn't mean you can't remain friends. A promise is a promise. Every day is a school day. There's always a rattle that refuses to be fixed. There's always next year.