One risk I took going kayaking was going into deep water. I was nervous and I really hate water that is deep.
How did I overcome this risk? I just put it out of my mind so I wouldn't think of it.
One thing I do in my life outside of school that is risky is snowbording. I could really hurt myself if I fell and broke my neck. After kayaking I have better balance and that will help me be a better snowboarder.