Home made have some problems, you can use a green screen video is normally available online (For green screen, you just need to use chroma key, not the way that is shown in jonray’s video, otherwise it won’t work) :-
- Just create a new track above your video.
- Apply chroma key to the green screen stock footage.
- Relax and drink some coffee when your edit is done and you are exporting.
- See the video after export.
- If doesn’t look good (or looks good) , post further.
- What Else?