I think the important thing about fear is to realize that how much fear you feel is not in proportion to the risk you're running. They're vaguely connected, but there are a host of psychological mechanisms that can make us feel more (or less) fearful than the situation warrants.
I tend to be more fearful skiing than cycling, even though the speeds are similar and the consequences of crashing while skiing are usually much less serious. And I'm skilled enough, I just don't have the daily practice that deadens fear. And yes, I have grown more fearful with age, but at the same time I understand myself more and am capable of doing things to win over fear. When younger I'd be more likely to either back out or just force myself to do something I was afraid of, blindly, and without really mastering it.
Winter riding is much less about badassery and much more about bundle-uppery. - malkin
1995 Kona Cinder Cone commuterFrankenbike/Selle Italia SLR Lady Gel Flow
2008 white Nakamura Summit Custom mtb/Terry Falcon X
2000 Schwinn Fastback Comp road bike/Specialized Jett