You dont ...you learn to deal with it and suprisingly its not as hard as you might think...
You learn tricks to compensate. I have a terrible time telling my left from my right if someone is navigating for me while I am driving....they literally have to point. I used to have to pledge allegiance to the flag to tell which side was left....but a good friend taught me a trick where I hold out my hands with my thumbs out, and the one that makes an "L" is the left.
A friend of mine here sees all letters backwards, and reads and writes using a mirror. There are all kinds of tricks you use....just find out what other people do to compensate, and you do the same.
Eat a Dictionary its the perfect Cure
Unfortunately you can't. You can only learn to live with it.