I have a cold

The waether weather of Holland is really cold for me. I am from the southern of China.  The weather from my hometown is so nice and warm., so the waether in my city is very nice. The winters are short and summers are long and hot. short winter and hot summer. I like summer very much, because I don't as I do not need to wear so need to wear s much clothing and able to .  lothes. And can enjoy the sunshine.
The day before yesterday, I missed my first train then I and had to wait for another one for hafl an half hour. It I was cold freezing to death. And now I have caught a cold from the waiting. Nice!  Isn't it?  waiting the train. How nice, isn't it?

I have a cold

The weather of Holland is really cold for me.

I am from the south of China, so the weather in my city is very nice. (You could see that there is a comma before the word 'so'. So is a coordinating conjunction and you should always put a comma before it if you are connecting two sentences, okay?)

Short winters and hot summers. (this is a run-on, but you could use it in informal writings) 

I like summer very much because I don't need to wear so much clothes, and I can enjoy the sunshine. ('And' is another coordinating conjunction)

The day before yesterday, I missed my first train, so I had to wait for another one for half an hour. (Don't use then because you wanted to say what is the result of the first sentence.) 

It was freeze to death. (use freeze instead of cold) 

And now I have a cold from waiting the train. How nice, isn't it?

I hope it helps! :D