I have increased my doses of downhills slowly. I literally talk myself through them. I tell myself to hold on to the hand grips, relax my shoulders, breathe (not hold my breath), scan ahead for rocks, sticks, potholes, etc.. I remind myself that there is no reason why I will crash (my fear is that I'll lose control and crash!). I tell myself, "see, you're doing fine, no worries, this is refreshing". When I'm smiling at the bottom of the slope I congratulate myself on a job well done! Hey, whatever works right?