Today is a rainy day. When I go home there's so much rain and I didn't bring an umbrella. I was caught in the rain. Now I feel so dizzy; I think I caught a cold.

Now I know I can't get rained on in the winter. <If God can change me and others I'm sure I will bring a very large umbrella.>

(I'm not entirely sure what you meant by the last sentence, so I'm not too confident in my correction there. Still, I get the general idea of what you're saying; good job!)