lol, that would make for a good one.
In any case, Its normal to doubt your own intelligence. Im a 14 yr old son of geniuses, so I do it sometimes. Like 5614 said, try to find something that appeals to you. For me, that would be, well, most everything. But look into more specific threads like "microbiology", or "Medical Sciences".
Everyone here is nice enough, just try to steer clear of some of the "crazies" (Mainly the ones who have been restricted to pheudoscience)
If you need help in something, just ask around or P(rivate) M(essage) someone.