Congratulations! It gets easier and easier (or, it gets faster and faster, depending on your mind set
). Glad to hear it turned out well! You should be proud of yourself.
If you want great advice for dealing with cars, check out the book "The Art of Urban Cycling" http://www.amazon.com/Art-Urban-Cycl.../dp/0762727837 which will give you some pointers for how to handle yourself in traffic, including defensive maneuvers like where to position yourself in the lane, and how to make an emergency stop or turn. I get a lot of people backing out and u-turning in front of me during summer especially, and that book has made me a lot safer in those situations.
'02 Eddy Merckx Fuga, Selle An Atomica
'85 Eddy Merckx Professional, Selle An Atomica
'10 Soma Double Cross DC, Selle An Atomica
Slacker on wheels.