There are a couple of things you might want to check before you try to solve the problem with different sights. Have your optometrist first recheck the actual grind on your glasses/contacts against the prescription he wrote. Labs get it wrong more times than you might imagine. He may have also have made a mistake when he wrote it, so getting rechecked can't hurt. Ask him (or her) to check you for eye dominance, and have it explained & illustrated to you so it's understandable.
Generally, if you are right handed your dominant eye will be your right eye. Or left handed, your left eye. However, my wife is left handed, and her dominant eye is her right. This means she has a cross dominance problem. After she found out, & corrected for it, shooting was much more fun for her.
Just a couple of things that might speed up your search for a better sight picture.
Good Luck.