Last 5 episodes in season 2 was nothing like episode 1 to 57

Episodes 1 through 57 was spectacular and absolutely awesome.
The story of the series, the directoring job of it and all the main actors did absolutely incredible job. Everything was absolutely great until last five episodes of season 2.
I will definitely give 3 star for episode 58 to 63. There was no happy go lucky excitement. I didn't look forward to watch the rest.
All of the sudden the story got strange and it didn't match the first 57.
Hopefully it will keep its reputation
But I have to say all the main characters do absolutely wonderful in their acting