O.k...I'm not a triathlete...but I just bought a TT bike last fall.

I've only ridden the bike about 6 times..but I'm having a hard time staying longer than 10 minutes in the aero position. I would like to compete in a TT in July (12 miles)...but not sure I'm going to do it because of being so uncomfortable in that position.

Does anyone have any hints on how I can get used to staying in the aero position longer?