Well it's not that fast, I had an old save of Sacred Stones where I was at Chapter 12 in Eirika's route from when I played before and ragequitting because the boss was crazy strong and could kill most of my characters easily (and I haven't really been playing properly, mainly using Seth to do everything so he took all the EXP and since he was promoted Paladin you get at start of the game he barely got any too :P).
And after that there were only like 9 more chapters since Sacred Stones is really short, might play through it again for Ephraim's route though, and to actually play it properly :P.
Otherwise I pretty much just play a few chapters a day.
And yeah Fire Emblem is awesome ^^. Binding Blade is supposedly the worst game of the series though(mainly because weapon accuracy on disadvantages is abyssal), so that might be a bit rough to play :/ . I did patch my translated ROM with a number patch made by some guy though that supposedly makes it less frustrating, so I'll see how that goes. I can link you my ROM if you want :)