Meteorologists can't predict weather perfectly because it's very tricky to do so. It's hard to find a reliable forecast of a general condition and trend of a weather. And sometimes, when meteorologists puts the weather on the weather channel, you can see that sometimes they change, which means that they themselves can't predict "<u><em>perfect</em></u>" weather.
I think this is amazing what you wrote, there is nothing that you need to change except for the ending sentence, you need to change that into "And I can't wait to see who I become." then it would be perfect.
