jreeder

You might be well served to at least buy a cheap set of clip on aero bars and slam your seat forward to simulate a TT position. It is just silly how much a difference an aero position makes in a TT. You might be surprised at how much faster you'll go if you're aero.

Also, try not to "attack" the hills if you're truly time trialing. You don't really want to attack anything, but rather keep a perfectly consistent output. You might end up feeling like you're creeping up the hills, but you'll do better to maintain your HR / power output between the hills and the flats.