Finished Fire Emblem Awakening!

I must admit, that final fight was way easier than the final fight against Duma in Echoes. Maybe because the Duma one made me advance veeeery slowly? 

My Robin killed Grima and managed to survive (I think they can actually die?), and I loved Chrom's comment on how things are finally over. And I still have so many things left to do! I wasn't sure if this was like Echoes and there was some kind of post-game, so I made a save just before the last mission to do some more things once I have time:

• Recruit all those characters from the SpotPass paralogues.
• Train everyone.
• Raise everyone support.
• Get all the kids to marry, because right now the only ones married are Lucina and Iñigo, XD
• Get all those freshly trained units and their support conversations into the DLC maps.

Now, what to do next, in general? taichara recommended me to wait until I have finished Awakening before playing Echoes' post game, so that's an option, but I also want to play Fates? But Fates is technically three games because of the branching? Goodbye, social life, XD

Thing is, I'm curious about Fates. From what Google tells me, the setting is not the same as Echoes and Awakening, but some Awakening characters appear? I'm intrigued.

I totally don't have 70 hours in Awakening because I started to train everyone like crazy. Panne is totally not a murder machine and Morgan is not my dear murder child.