Question about returning resident?

im 18 years old from america im in east africa and been here for 1 and a half with my green card the question is wel i came here when i was 17 with my father and he kept me here by force and didnt have a job or home so waited til i was 18 to go back i found about sb1 visa im desperate to go back wat are my chances? It was beyond my control and i heard the visa is really hard to get you need alot of proof etc. Can i just go with my green card how wil the really know they dont scan it or anything on your way back do they when im leaving from the airport dont want to take any risks tho