anybody else left eye dominant, but shoot with their right eye?

I shoot mostly h.s. sports for fun, and thinking I need to try and make the move with shooting both eyes open and right eye looking thru the viewfinder.   How hard of an adjustment is this?

right handed, left eye dominant
shoot a rifle and play pool left handed

tried to play guitar left handed and my first instructor made me switch when I was 10. Still pissed about that. I'm an adequate guitar player but I might have been great.

I'm right-handed and left-eye dominant.  I shoot long guns and bows left-handed.  I shoot handguns right-handed with my left eye.  I've had a few interesting conversations at the range with firearms instructors about my goofy pistol stance!  Shooting with both eyes open is best, IMHO, but it took a while for me to get used to it.

I also tried several things (eye patches, etc) suggested by local experts to "cure" my problem.  Nothing worked for me.  I decided to practice what came naturally to me and I do OK.  Good luck.

Left eye dominant,  right handed. Shoot pool, guns, hit a ball left handed...

Same except hitting a ball.  

I do that right handed.

Left handed, but shoot pistol/rifle/AT4 right handed with right eye. Shoot bow and pool left handed with left eye.