Need debug in my game

Here is my game: https://makecode.com/_Jcq29hi9oTDJ

I need help to debug it so when I shoot it doesn’t destroy every enemy sprite. I just need it to destroy one sprite at a time. I know the reason (when the game updates, it’s making a sprite called myEnemy, and it duplicates but doesn’t change the name, so there’s no difference between the two sprites) but I cant figure out how to fix it. Also, moving it outside of the function won’t work, since if I do that then the code can’t identify the sprite I want to destroy