Back again almost two hours later. Breathing exercises helped relax for a while but concentration failed and agitating thoughts flooded in. After a while of trying to sleep I have to get up to calm down a bit before trying again, which I'll do in about 10 minutes. This is still better than when I joined the forum a couple of months ago, living dusk to dawn a lot. 

That's a wonderful story about your friend, the quiet singer, @Appleblossom. Goodnight or good morning, depending on when you read this message.