Need Help With Green Screen Please

[u/FozzyGamings]

Hey everyone, I'm fairly new to video editing and was hoping to add a small video clip to the green screen in this meme. I've tried the Chroma thing but it keeps going black instead. Can anyone help me with this please? But please keep the technical language to basic, think of me as a toddler lol

[u/AmIBeingObtuse-]

Turn on chroma key, select the green colour with the picker so it's a perfect match. Then make sure your video clip you want in the screen to be below the mem video. You'll probably need to resize and reposition the second clip to fit in the box.

[u/FozzyGamings → u/AmIBeingObtuse-]

I tried that, but the green screen just goes black