feeling self conscious

I get so self conscious and tense when I'm walking to and from work and I can't even take another route and I have to walk since I don't have a car. Sometimes there's traffic for ages and I hate looking over at the cars because the guys are staring at me. I don't know how to feel more relaxed about this. I can understand people look over from their car sometimes but I just hate feeling like they're watching me and it stresses me out, especially because the pavement where I walk is so close to the cars. I feel a lot easier in the winters when I'm wearing a big coat but even then sometimes it makes me feel tense.