Hi, new wannabe here

Girlfriend and I are anticipating a full summer of athletic events to include a few sprint triathlons and a half Iron man. We have been training hard through the winter and looking forward to racing. We completed out first OCR of the year in March and placed (me) 4th in my age group 43+ and she placed 3rd in her age group 42.

Biking is something new to me and haven't been on a bike for more than 10-15 minutes in the last 20 years. I have spent a good deal of time on bikes at the gym and conditioning is not going to be a major issue. I experienced an epic crash last night as I attempted to transition to my aero bars... Nothing injured other than my pride as my 13 year old son was right behind me and couldn't stop laughing as I did a shoulder roll and came up ion my feet with a huge roll of turf hanging off my shoulder..., but I'm obviously missing something here. Any words of advice on transitioning to aero bars?

Thanks
Steve & Paula