I'm a new commuter also; I've only been doing it for a few months. The thing I realized is that not every trip is good. But that would be true regardless of whether or not you're biking. You can have bad trips in a car as well.

In my experience, most rides are good. Some aren't, but most are. I almost got doored the other day. I almost got hit once. But these were isolated incidents in two rides out of about thirty.

And I _have_ ridden against the wind, and had to go quite slowly. It's a pain, but you shouldn't let it keep you from riding if you enjoy it most of the time. Not every day is windy.