Good on you. A tidy environment helps me with a clear mind.
You probably should get it checked out
I guess ordinary is better than crap.
Excellent. Music helps a lot and so does being creative. Keep doing what makes you happy :)
Be honest with yourself and work through the possible outcomes. Maybe the worst case scenario is fine. Maybe you have a lot on your mind and processing learning the ukelele and/or having the guy over is too much. This is how the brain works for all.