There are things to do to feel and be safer. Contact the local police for any community safety course they hold. (Often they have these for all age groups, how to be safe when driving alone, shopping, at home answering the door, etc.) Any one of these will teach you HOW to be alert without being afraid.
Also, always go with your "gut" instinct. I often change the road I planned to drive on, just "because." Few things happen to me, it could be for that reason. (But can't prove a negative anyway.

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Being PROACTIVE in your safety is a good thing. Plus, it helps reduce fear. ((tc))