Yesterday I became a lefty in a flash, story here https://pistol-forum.com/showthread....=1#post1132889
I have seen the tales told here about needing a support hand set up and always said I need to get a left handed holster and never have acted on it. I am glad I have a convertible holster for my LCR and P365, I didn't do this on purpose.
If you haven't set yourself up with support hand gear, do it now and don't wait until you are typing one handed.