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You now have three chances to tell Harry about the prophecy. If you do so, he returns with Cedric from the graveyard before Peter finds them and Voldemort never gets his full-sized body back; otherwise Cedric is killed, Voldemort returns and you have more choices to make. If you choose to teach Occlumency to Harry yourself, he doesn't go to the Ministry to rescue Sirius, Voldemort gets abandoned by all his Death Eaters except Bellatrix Lestrange, falls in love with her, goes into seclusion with her and turns back into a remorseful Tom Riddle. If you ask Snape to teach Occlumency to Harry, he goes to the Ministry, Sirius gets killed and the Second Vold War starts.
If you tell Snape not to kill you, he dies, Harry never finds your sword, Voldemort wins the war and Ron, Hermione and Ginny are all killed. If you tell Snape to kill you, there are three different outcomes. If you have placed Harry with the Dursleys, there are two different outcomes, depending upon whether you tell Snape that Harry must kill Voldemort first and then himself or else allow Voldemort to kill him. Harry will obey either set of instructions, but if he kills himself the good guys suffer far more casualties, including Ron, before they finally win the war, whereas if he allows Voldemort to kill him, he doesn't die; instead he survives to kill Voldemort, become an Auror and marry Ginny. If you have placed Harry with the Weasleys, Ron tells him to let Hermione exorcise his Horcrux, which she does; so he doesn't have to die either way. He kills Voldemort and becomes an Auror but he doesn't marry Ginny. Ginny, who becomes a professional Quidditch player with the Holyhead Harpies after graduating from Hogwarts, marries Oliver Wood and Harry marries the Harpies' Seeker after she beats him to the Snitch.