Have recently started to practice shooting left handed as my right wing is a bit of a wreck (osteo arthritis)
I found it very awkward at first, I habitually shoot with both eyes open anyway, then I started to improve quite a bit, I quickly realised I was using my right eye to aim and had shifted my grip to allow for it and moved the gun a little to my right,
I think my aimed shooting left handed is better than my right,
Hope this helps,
Good luck,
Bernard.