Possibly falling out of love? Not good enough?

I'm sorry if this doesn't belong here. Anyways, I have been with my boyfriend for 8 months now. He is an amazing guy. Educated, sweet, caring, the whole nine yards. I just feel like I am not good enough for him. Basically I feel like I won't be his equal because he has such a bright future ahead of him and I'm struggling to find myself. I have yet to speak to him about how I have been feeling. I just feel like what I am feeling right now won't ever go away until I better myself on my own. I know that he loves me. I am his first real relationship and first love/partner. I will talk to him about how I am feelings before I make any major decisions. But do you ladies have any suggestions or opinions?