Thanks. It was actually F12, I managed to catch it for the split second it showed; for some reason it doesn’t always show the commands when I switch it on.
This is what I got.
I selected Ubuntu and I got my choice back again. I hope i don’t have to do this every time I boot though.
Thank you for being so patient with me.
I’m sorry to say I tried this and it worked.
I also got a person to leave by writing VY Canis Majoris. I’m not sure how they interpreted that.