Peanut Allergy is the most prevalent food allergy in the US, where as many as 1.5 million people suffer from the disease (American Academy of Allergy, Asthma & Immunology). Peanut Allergy is the most common cause of food related death (Asthma and Allergy Foundation of America).
More Statistics...
You start right here-exactly what you are doing. But first-take a DEEP breath! :)
A new diagnosis is hard. First thing is to keep the epi-pen on hand at all times. Second is to avoid peanuts, any products that might contain peanuts, any products with a label warning such as "may contain" or "processed in", etc.
The above is more than half the battle.
I founded Best Allergy Sites because I was right where you are about 4 or more years ago. The following link is for those that have a new diagnosis. I hope it's helpful.
Ruth
http://www.bestallergysites.com/newly-diagnosed/