Normal, there's that word again. Usually, not much of a fan of that word, except for in this case I suppose it has a positive meaning, or rather a hopeful one. Here's the thing, we change all the time, naturally as we grow older. Sometimes through bigger things, like a horrible tragedy, sometimes because we lose ourselves and our way for a bit and try to reassemble it.
Will it get better yes? But I'm sorry to tell you, that you can't go backwards, that's not the way life works. But what you can do is move forward. Perhaps you just need a little push to get started. About that writing, perhaps there's a club or something you could take part in, or even just search for forums online with other people like yourself with such aspirations ( even here on blah ) . Also, as a fellow writer, I am more than enough familiar with the 'writers block' or the complete lack of inspiration. But there are some really handy tips and tricks out there to help get the juices flowing. Music for one.
You need to try and remember as well love, that this, these feelings, or even lack thereof, they're not who you are. They're just temporary. I don't know the cause of them, but if you can figure it out for yourself, it'll make things a bit easier to get yourself out of there. And you're right, distractions are always good. They keep you from thinking too much about things you shouldn't. Speaking of writing, perhaps it would be a good thing to write your thoughts down, your fears, your hopes, your goals for the future. Anything and everything you're feeling, get them out on paper. It help to get a different perspective of things.
Another thing, it's okay to be selfish. To put yourself and your well-being first. Try not to worry to much about things you should do, or can't. But the one's you can do. At the end of the day, with the will to do so, you can accomplish anything.
If you ever feel like talking to some one, wether it's about writing, or anything at all, my inbox is always open love.