I'm trying to make it as to where the scripts plays only once after clicking on the sprite, but the script keeps repeating every time I click the sprite.

You want to make a variable to check if you have activated the script, and do something like this:

This will only allow them to click when check is 0 (or before they click), but then right when they click check is set to 1 so they can't click it again.
If you want them to be able to click it again after the code fully runs, replace the bottom code with:

Setting check to 0 again will make it possible to click again.