its its just the lying that gets to you, then make it clear that he can be honest with you if he didnt do what you asked. make him feel comfortable telling you things like that. how to do that? dont get angry. dont guilt trip him. hell never tell you anything then, lol. im not saying to be a pushover at all. there is just a line that has to be found between being on top of things and being strict. hes 19. he doesnt need strict from the description you gave. just say that youre tired; you work, you run around and do things. and you need him to help where he can also.