Dear Twilight Sparkle:
I'm afraid my aunt is unable to answer at the moment, so I'll have to write this for her. Believe me, she needs this vacation after constantly having to put up with your shit.
First off, I'm glad that you're learning how to fly, because there is absolutely no way that I am ever letting Shining Armor toss you again. I know exactly what you were thinking when he grabbed you, and I'm not going to allow you to take advantage of him. Go stalk Flash.
Also, don't you dare think that just because you're a princess we're going to let you leave Ponyville. That little cesspool is your home. If you want a castle, build one there. Otherwise, don't get used to living in a palace, because you're going straight back to your little tree at the end of this. On the positive side, I'm sure your friends will be really happy about having you back!
But enough about that. I'm willing to bet you have something to do with the sudden disappearance of Celestia and Luna. I mean, let's be honest here; a third princess (one who bears a notable grudge against the eldest princess, no less) arrives in Canterlot, and suddenly the two older ones vanish without a trace. I mean, is that not an immediate alarm bell?! But no, the ponies of Canterlot decide that they have to turn to her for advice during this difficult time! Oh yes, because she's a princess, and so she's obviously as wise as the other two and more than capable of leading the nation! Yes, I see no way this could possibly go wrong!
Oh, wait, that's right. You bailed and went back to your little cesspool the moment things began to get ugly. And then, to prove how clever you are, you summoned Discord, the lord of chaos and the guy who is almost certainly responsible for all our current problems. Clearly Princess Twilight Sparkle is a great role model for little girls everywhere.
But enough about your obvious inability to be a proper ruler. Instead, let's talk about your love of drugs. I mean, when a zebra who you obviously distrust gives you a bottle of a mysterious substance, what do you do? Well, obviously you drink it, even though you have no idea what it's going to do!
But, then again, seeing how you got to experience an argument between my aunts, maybe the potion really was exotic dragon semen. Or just milk laced with LSD.
Love, Princess Cadance Not-evil Good-pony
P.S.: Did you know that drinking dragon cum has been known to cause alicorn wings and horns to fall off?