It's my second FE game after Awakening. (Sacred Stones doesn't count.)
Congrats. Good luck!
No, really. I've only played two games of Fire Emblem in my life. One was too easy, the other? Impossible, even on the easiest setting. I don't know what direction this one goes in, but it might be another impossible. When I say good luck, you're probably gonna need it. Unless you pull a Luffy.
First FE title? I thought you did Awakening first.
I never played Awakening yet.
Fates is your first FE game? Didn't know that.
Yep. I was reluctant to get a Fire Emblem 'cause of the grid battle system but now I think I might enjoy Fates.
Birthright is probably the better one to get for newer players, in my opinion. Conquest is the more challenging of the two.
How challenging is Conquest?
Conquest (and the Nohr story path) offers fewer chances to train your units in between chapters. You have the freedom to train whenever between chapters in Birthright.
Get Conquest and revalaitions as well.