Having dealt with grief both personally and as a volunteer in the wake of natural disaster, I've learned that there's not a right or wrong way to deal with grief. People do it in their own way. I will say that trying not to feel what you feel almost always comes back around to bite you later.
And, Lildrummrgurl7, while there's nothing anyone can say which will help much (if at all), I can say I've lost a friend to suicide (not my best friend) and I can empathize, if only imperfectly. It will get better with time. Try to remember the good times you two had together and to be grateful for what you did get to share.
When I lose someone close to me, I try to feel as much as I can, as soon as I can. Unfortunately, I usually go numb (except, for some reason, when I've lost a pet). When I get numb, I just try to keep busy and to kindle that attitude of gratefulness. Because, the way I see it, we don't deserve the good things OR the bad things that happen to us.