If you've been only used to riding on nice smooth straight bike paths, then yes, I can understand why you'd be nervous going out into the streets. I do suggest you put in some empty parking lot time practicing tight circling, figure 8's, zig-zags, quick stops and starts, etc. Practice leaning into serpentine zigzagging. Practice really tight turns and circles. I did this for about an hour maybe 4 times when I started, and it REALLY helped me get comfortable with controlling and maneuvering my bike. Just do it.