Writing styles.

I took a break from writing my book, and concentrated on short passages instead. Problem is, my style has changed a good bit. Now I'm trying to write a new chapter, but it sounds completely different to the previous ones. This sucks....

Writing emotions

Is it truly possible to capture an emotion in words? Such indescribable feelings as love, loss, or anger? Sure, you can write and make the reader understand what the character is feeling, but making them feel it themselves is an entirely different story.
So, you have to balance cliches and new metaphors, because nobody likes too many unimaginative cliches, and yet using metaphors that are completely unheard of can leave the reader confused or unimpressed.
A good story has coherent feeling in it. A great story actually makes you feel.

Writing is difficult...

Don't you think words are powerful? With a single perfectly constructed phrase you can make someone break done in tears, or smile quietly to themselves. The problem is structuring that phrase. Do I use this verb? I used that noun before. This adjective isn't working... etcetera, etcetera.
With words alone you can walk through the forests of Middle Earth with the elves, or though Hogwarts castle, or any manner of impossible things. It's too easy to mess up though. A simple slip of mind, or straying too far off the path of your story can be the undoing of it. Or the simple fear that your characters are too weak, or don't have enough flaws. That's my problem. I know their flaws, but I still try to trip them up in every chapter...
So maybe it's just me, but writing is a great undertaking. But hey, if a story is worth telling, it's worth telling write. (Ha ha, get it? write? Yeah... stupid pun...)