LOL, when I first started 7 weeks ago, I gripped the handlebars so tight I pulled the rubber things off!
Every bike lane I went on seemed way too narrow. I had a problem doing a u-turn on a city street.

Now, a thousand miles later, all that is a distant memory, and the same will happen to you. Just get out there and ride, ride, ride. And every time a DF'er passes you on a hill, think how much your butt, back, and neck are thanking you.