Menox,I think we all had that problem,especially if you come from a surfing,skateboarding background.
Standing the other way around just dosent feel "natural"
When your riding on your good side really look at how your standing,where your weight is on your board ect.Then try and copy that on your "un natural side".
It might seem like you will never get it ,that it just dosent feel natural to stand the other way around,but keep at it and soon you will feel comfortable both ways.
I now find that I can go upwind,jump,backrolls ect better on my un-natural side.


Dont know why.
Dont give up.
I did the same as you and rode toe side so I was still on my good side,Now that I have been riding both ways and have been trying to ride toe side I have trouble doing that when before it felt easier than riding on my un-natural side.


Now when Im out there I have to think weather Im on my good side or bad side,,both feel good.