You don't necessarily need to have exhaustive information about your immediate family in order to conduct genealogy research.
One complaint that I've heard from people before is that they really don't know anything about their parents (other than their names). If you don't have a lot of information about your parents or grandparents, it doesn't mean that you can't investigate your family history.
I recommend that you sit down and think about what you already know, starting with yourself. Your birth certificate should provide verification for where and when you were born as well as your parents' names (including your mother's maiden name, which is important). If you don't already have a copy of your birth certificate, you should be able to obtain one in your county of birth. Where I live, it's the register of deeds office, but this is likely to differ between locations.
You can also contact the Vital Records department for the state in which you were born.
In addition to providing you with your parents' full names and ages at the time of your birth, your birth certificate should also tell you where your parents were born. This information might give you the jump start your genealogy research project needs.