I would work on strengthening your ankles v.s. wearing braces. Calf raises etc.
That is great advice. I felt the same about my knees, but been working very hard on strengthening my thigh muscles and (touchwood), my knees haven't bothered me as much.
But I feel my ankles are really weak.....it turns at the slightest of touches.....not sure how much I can improve prior to my trip in ~ month's time.