Magic Tricks

I've never had an issue when watching a 'wrong' (left) handed person doing a trick and then learning it right handed.
Yes, I'm right handed...
However, since it can be an issue, here are two simple suggestions to address your issue.
1.) Place a mirror next to your video screen and watch the reflection as your training video.
Ta da...Joe is now right handed.
Don't laugh! Although very silly, it works.

2.) Go to the settings of your favorite video player and flip the video horizontally for viewing. Now, your leftie becomes a rightie...

3.) Google it...how to 'mirror' view videos.

Best wishes...