You are almost there. You just need to call the function and it will work. Remember the instructions say that you can call a function by writing its name followed by parenthesis.
Functions are storage containers for jobs you want done. But they don’t know when they are needed until you call them. You do that by saying the name of the function and add ()
In this example, the job is to log the string “Hi, World” to the console. You have a function called reusableFunction() whose job it is to do that. Now, just call it so it will do its job.
if you had a lot of struggle, once you finish the Basic JavaScript section you may think of doing it all again. In this way you can also see your own progress.
You have to remember that not only are you learning javascript but you are also learning programming basics. It just takes time like the other posters mentioned.