Help with errors

Hello, I have just started using Unity today and am following a tutorial to create a starfield. Originally I got a ton of errors but have managed to get them down to 2. I can’t for the life of me fix the last 2 remaining errors. Any help to a newbie would be greatly appreciated - thanks a million.

On line 37 you’re missing an ending curly brace } to close the CreateStars method. You need a return type for the Update method on line 39, if not using yield just set to void, the access modifier can be blank or public/internal or as i said blank. update needs a closing curly brace } on line 60(make 60 a new line) since 61 seems to be closing the class block.