Sorry about that. Once you split the layer in half it will create 2 layers. so take those layers and Swap them by takeing the one on the left and put on the right and the one on the right to the left. The point where you slpiced the fire layer in half will become your loop point.
I’m sorry, this is simple thing but it’s hard for me to explain it without showing you. I hope this explnation helps. If this still dosen’t make since let me know.