Hottest place ever

No, I'm not talking about hell, I'm talking about my apartment! I don't actually get to control my own heating situation and it's driving me crazy! I live in an older building. It's the kind of place that the building actually has to turn on the heat and I can decide if I want more in my apartment by flipping another switch (um, no thanks). Not only that, but there's a lovely radiator in my bathroom (that is the size of a coffin) which also adds some heat. This makes my place so so SOOOOOOO hot! So hot, in fact, that I had a window open while it was snowing. So hot that I sleep with my window cracked open when it's 20 degrees outside. So hot that I will open the tiny bathroom window as I dry my hair in the mornings so that I can get a little bit of air so that I don't sweat my guts out before I go to work. The place is hot. And it's in a huge contrast to the weather outside (which is aroud 20 in the mornings and gets up to the mid 30s by the afternoon) so I'm so confused as to what to wear and what it will feel like outside. I'm going NUTS trying to cool off my apartment- during the coldest it's ever been here!!!