How hard will Clannad After Story destroy me emotionally?

Now i have seen Clannad a few Months Ago Blind without even any Idea of what the Show even was about outside of its Title and Genre and i frickin love that Anime even tho it is very Heart Wrenching overall >.<

Now i have been told by one of my Friends that After Story is basically like getting pegged twice regarding Emotional Stuffs and im just gonna be all like waaaaaaaaa >.<

Or should i just play the Clannad Visual Novel first before watching After Story considering i havent seen the Specials tbf >.>