You can cut a bit of it off if it's too long.
Tuck the last bit of the strip into the pouch. You should be left with a cute little pentagon.
And you should have a lovely little lucky star!
It may take some practise to get the star to puff out perfectly, but stick with it... you’ll get it!
If you are having a lot of trouble, try different papers, or try wrapping the strip of paper around without creasing it too much. This helps a bit!