We are, fortunately, mostly rational. Dogmatic beliefs can never withstand the test of time and in order to adhere to them continuously, we have to become a tad bit irrational. And that's where doubts are born. In any case, it's best for you to seek out all the answers yourself, ask people, ask your religious scholars but never fail to see what the other side has to say as well. Then when you ultimately reach your final conclusion, your foundations would be solid. Like my unplucked eyebrows.