*HELP* Going to MEPS?

When I was 17 I was charged with petit theft, possession of alcohol, and possession of marijuana. I completed the Yes program and all of the charges were dropped. My recruiter ran a background check on me in the city, county, and state and nothing came back, my record is clean. I have an appointment with him on Monday tol build my packet up and then I go to MEPS the weekend of the 10th. He has told me stories of people gettin kicked out of MEPS but he said I should be fine. I really want to join the Army and hope I will be okay. What are your thoughts?