Good job on your first TT! If you can make this a regular workout, you will definitely see improvement over time, and hitting your 16 mph goal is very achievable!

In the rollers and false flats, try to push a bigger gear as long as you can, and if the climbs aren't really that big, stay in your aero bars. I only ever get out of my bars on the one BIG climb on our TT course, and I never shift into my little ring on the front. Pushing the bigger gears will help you with the power. Give it a try, and see how it goes.

Good luck on your next race!

SheFly