About to Give Up on Dawnguard WAY Lost to the ages Quest!

I have a possible bug. I gathered all four shards and put them into their slots, receiving the Aetherium Crest. Then the screen said to stand clear, but nothing happened. There was still a quest marker, seemingly buried underground, but the tower did not rise. I advanced the quest via console commands, which caused a tower to rise, but no other opening appeared. Well, the tower looks like a glorified gazebo, but I can't do anything inside a hollowed out, empty rain shelter. I currently can't get inside anything or progress any further (unless I were to enter more console commands, perhaps, but that's no fun). I think the problem occurred because I put the Aetherium shards together and grabbed the crest before Katria even showed up (she was, in fact, buried in the hill, too far away to interact without clipping through the landscape). This problem occurred on the PC.

Been Trying and Trying and Trying AND TRYING AND TRYING TO FIX THIS GOD DAME QUEST!!@!@!!!!!!!!! Been at it all Day For the last 3 DAYS! Looked online for HELP! NOP! Looked Here For HELP! NOP!

I'm assuming you don't have any prior saves? I say this often to people, but in the future it would be a wise choice to have backup saves, they are very useful and will save you alot of time and stress in the future.