Help! Scared of Bike

Hi all.  I completed my first sprint tri two months ago.  I was fastest in my age group in the water and in the top middle of the pack on the run.  On the bike, however, even though I'm in sick biking shape from spinning for years, I was in the bottom three!  I attributed my slow time to (1) I only learned to ride a bike on the road recently and (2) I was on a heavy hybrid rather than a road bike.  After the race, I bought an entry-level road bike and, on only my second ride, I hit a seam in the road and crashed.  I skinned my arm really badly, jacked up my shoulder and whacked my head (thankfully beneath my fantastic helmet).  It scared the bejeezus out of me.  Now, I've got another sprint tri next weekend out of town and I've yet to get back on my road bike for a real workout.  I also have to ship the bike to the race venue, so I'll basically have 24 hours with it before the race.  Am I nuts?  Should I just ship my hybrid and deal with the slower times or should I bite the bullet and push through the fear, even though my skills are not what they should be?  I'm so confused.  Please advise.