Life changing events... 

I just wrote my boyfriend a letter...  One of the hardest things I've done so far...  We've been together for a little over two years...  He's an awesome guy...  But I don't feel like I should be with him right now...  I love him to death but I think I need to grow up a little more and experience more of life before I make a life long committment...  I feel like my insides are going to come out of my mouth in a second...  Why is this so hard...  I really don't want to hurt him...  Why do life changing events suck sometimes...