Memory is selective.

There's a reason we forget things. Human resilience has been tested millions of times in history. Tons of women have told me that if we didn't forget, no one would have more than one child. Well, I haven't had any babies yet and can't tell you what labor pain feels like or how quickly I might forget it. But I do know that I've been known to distort the past as things change or as time passes.

The last few weeks have been so difficult that I decided, this time, I want to keep a record so that I can't fool myself when I choose to look back upon these memories. Think of this as a time capsule. Something for me to lock up and put away, only to be opened when I begin to forget. Something for my friends to show me when I start saying things like, "Oh, it wasn't that bad."

The fact is, it is that bad. It's hard. It's frustrating. At times, it's heart-wrenching. It's infuriating. Sometimes it's funny. But it's constantly overwhelming.

When I decided to quit my six-year job and change career paths, I knew that my life wouldn't be the same. I knew that teaching would eat more of my free time than investment banking ever did. I also knew that I'd feel it was worth it. So I assume the big question now would be: Is it?

Is it worth it?

Honestly? I can't tell you yet. All I can say so far is that I underestimated how difficult this is. Getting up at the crack of dawn, grading on the train to school, climbing 98 steps eleven times a day, four to six of which includes leading a class of 28. Spending every moment on my feet. Having to think about what I'm saying all the time. Having my incompetence stare me so squarely in the face.

My life has changed alright: I get up when it's dark, go to school, teach, stay after school to grade, come home when it's dark, prepare for the next day's lessons, call parents, eat dinner and crash in bed. Every single day. I dream about my students. I dream about photocopying onto overhead paper. I dream about lizards eating me. I spend my weekends planning for the week. Preparing charts for my room. Writing papers for my graduate classes. Buying prizes for my students. Photocopying. And sleeping.

My only moments of peace come on Sunday mornings where my amazing husband and I go to the local bagel shop at 8:30 and read the New York Times for two hours. Two hours of heaven. Two hours of not thinking about all the things that go wrong in my room. Two hours of not worrying about how the next day's lessons will go. Two hours of not feeling so incredibly incompetent.

I do love my students. Even the most mischievous ones. I can't help but care about them. I want to laugh at their ingenuity even when it disrupts my class. But my tolerance and patience has dwindled almost to nothing. It's gotten so bad that when I see people chewing gum anywhere, I have to work extra hard to suppress the urge to yell, "spit it out!" I fix everyone's grammar constantly. I can't stand it when people are being disrespectful at a meeting by having their own side conversation. I have heard every excuse and more as to why homework is not complete. I have listened to parents hollering at their children in front of my eyes. Much to my despair, I have made students cry.

But I have also made them smile. The magic of a student understanding something I've taught is immeasurable. Just like the drain when a student refuses to stop calling out loud in class or refuses to stop being disruptive.

So many things happen each day. I always come home with the urge to write, knowing I'm going to want to remember these days.

But I don't write.

Days pass, I forget. My memory knows I won't survive it if I keep remembering, so it helps me out. Maybe it's better that way.

Maybe some things are best forgotten.