I feel your pain.
I'm a lefty for semi-auto rifles because of an astigmatism in my right eye. I wasn't able to see pop-up targets past 200m during basic, so I swapped hands.
I want to get an M-24, but it's a long action and the bolt kinda got too close to my face for comfort whenever I cycled it. I had to watch my right hand come to my face, in order to not smash my face with the bolt. I then realized that any adjustable glass will focus the objective for you, after finagling with the dials for a few minutes.
Ultimately I was able to train myself to shoot bolt-action rifles right-handed. It takes a few trips to the range and a lot of dry firing at home to get the muscle memory going, but it's possible. It may not work for you, but I would give it a try. The bonus is that you become ambidextrous when it comes to rifle shooting, just like me. I shoot semi-auto left-handed and shoot bolt-action right-handed.
I hope this helped.