Welcome aboard! You will be surprised how fast you gain strength and start to slim down. Set a two month minimum.
http://www.pinkbike.com/news/santa-c...-test-lab.html
the link above is a frame failure test comparing an aluminum Mountain bike frame with a carbon fiber frame. CF is very strong and surpassed what common "logic" had reasoned. Ride that CF bike with confidence my friend. Ride it like you stole it.