If you have less than 3 generations, go to familysearch. They can help you refine your research skills and find new sources. Every 10 years, it conducts the Population and Housing Census, in which every resident in the United States is counted. The agency also gathers data through more than other surveys of households and businesses every one to five years.
You can explore the results of the surveys or find popular quick facts. Search free records. Free vital records. Free travel and migration records. Asking them to identify people or places in old photos, for example, can be a catalyst for stories and leads.
Start by asking questions about your parents, grandparents, and, if possible, great-grandparents and beyond that will reveal foundational knowledge. Basic information to ask about includes full names and names of siblings, birthplaces and birthdates, locations or even addresses of family homes, nationality and ethnic background, occupations, education, military service, and where relatives are buried.