It's funny how the sting only grows with time in many regards. I'm in the middle of a GOT rewatch right now, and I'm already beginning to feel the sting of "what's the point?" Every time I've tried to rewatch the show since it ended, it's been that same result. I've been HOTD-obsessed enough lately that I'm just like "fiine I guess I need more Westeros," but the weight of knowing it goes nowhere is pretty brutal.
Did you ever see Dexter? It's funny, they rebooted the series a decade later after a terrible finale, just to do an even worse one, and I'm still more angry about GOT!