I am twenty years old. I just rode my bike to work. It was one of the most terrifying experiences of my life.
(This is not a work of fiction.)
There weren't any occurrences, I didn't fall down or run into anything, but the possibility is aways looming, darkened by the presence of automobiles.
I'll re-write my first line:
I am twenty years old. I just rode my (first bike in a long time) to work (for the first time...not the first time riding this bike but my first time really riding in the streets).