Polorised glasses will help by allowing you to see through the surface of the water. Although you are colour blind, the shape/shadow of a fish approaching your fly will be seen just as clearly as someone that isn't colour blind i would imagine?
In any case, there are lots of occasions where the water is coloured and doesn't allow anyone to clearly watch the fish approaching.. and of course when you are fishing sub surface, at depth, you cannot see the fly anyway!
My personal oppinion is that learning to feel the take is very important, you will not go far wrong if you can detect subtle takes.. I reckon this is more important than seeing the fish.
For dry fly fishing, colour blindness shouldn't make any difference to your fishing success? You will see the shadow of the fish approaching, you will see the take as the fish disturbs the surface and/or your fly. You can also pick a post colour that suits you best when fishing with klinks etc...
You will see the 'flash' of the fish as it turns in the water. . etc etc.. etc..
Enjoy your fishing.. Adapt your style if needed, learning to 'feel' for the fish is not a downside, its a skill worth learning.