Ahahaha! Awesome! Anything with time and patience! :D
I disagree regarding training your eye. Both are voluntary and have become habits in our daily lives. I know this, because of what I do, I have trained myself to become left-eye dominate. It took a long time although now it's a natural occurrence for me. With being a beginner at target shooting, it's become an issue as both eyes want dominance so to say.
I'm trying to figure out which is the lesser of two evils. Both will be awkward and require patience and a lot of practice. I have no access to a left-handed rifle so I thought what can I do to correct what my vision does when looking through a scope, hence my ask for what worked for you as a cross-dominate shooter.
I am not opposed to trying left handed shooting and if the opportunity arises that I run into someone with a left-handed rifle I will be more than happy to give it a shot! (pun intended - lol)