Unlocking Hard Mode Ifrit, Titan, and Garuda

Okay here is my story.... a long long time ago i saw a bunch of quests in the walking sands, I ignored them as I was already 50 and heavensward had come out and i was attempting to power through the story to get to it. Problem occurred after 'Let Us Cling Together'. I went back to Minifilia and received a notice that i needed to kill the 3 on hard mode. I figured okay no probelm. Went back to walking sands... No thancred got all the quests there but they only pertained to extreme modes of moggle and such... So figured Thancred was at Rising Stones. I went there... looked around for him and found him drunk on his table, talked to him nothing about HM Ifrit. So then I was at a loss. I have no idea how to continue the story without them and cannot continue without them. I also have no way to unlock them. Please tell me what the hell is happening... is this punishment for not talking to every single person or what?! Please help a very frustrated player and tell me how to at least get the ball rolling on these hard modes. Thank you!