Okay, I have about 7 weeks until my first ever tri event, half aquabike (1.2 mile swim/56 mile bike) and know there are a gazillion things I don't know that would help me.. those things you learn along the way by doing. I've been biking for years and years and have learned a couple of things that would help a newbie avoid the mistakes I made.

What do you know now that You wish you'd known then??
What advice would you give a newbie?

Thanks for any and all replies!

Susan