There are several answers to this. The first answer is the one I would have given if you'd asked me BEFORE you started:
When you choose the Type Tool, most people just click, then start typing. But in this case, it's much better to click and drag a big text box. Then when you start typing, your text will be inside that box, and you can align everything perfectly inside the box.
I urge you to start again and use this method. It makes everything MUCH easier.