After you file

im 16 year old and my mom has a husband not my dad who is putting me in his taxes and he does not provide anything for me but a roof witch I am not complaining but we are not in good terms and his been putting me in his taxes for 5 years now me and my brother and we never received anything from it no clothes nothing what can I do my mom always telling me that he does not get anything from us that I he has to pay taxes because of us is this true? My email is [email address removed] please help me