挺冷的

在我小很小的时候，我有梦想着去外国。今年我21岁了。，我决不却还不曾去过外国。现在我住在一个小小的城市。，这个城市离资本首都有200千米。这儿一连二十天天气都很冷。我喜爱寒冷的天气，但我朋友感冒了。他头疼，、流鼻涕，、发烧（了）。，（但）他不想去看病。，（因为）学生住医院不很怎么好，有愤怒的医生。（这个问题有每个俄国城市都有）。天每天天气太都很冷，所以很多人感冒了。我们都想去热温暖的地方或想让天气热起来了。至于我，我想回国离开这个国家。，这是个地方挺太冷的了。
(When i was very little, I have a dream to go abroad. In this year I turned 21. I've never been abroad. Now I live in a very small town. This town is 200 km away from capital. 20 days in row is cold wheather here. I like cold wheather, but my friend fell ill. He's headache, flowing nasal and fever. He doesn't want to visit a doctor. Student's hospital is not so good, there are angry doctors. (This problem has every Russian city). Every day is cold, so many people fell ill. We all want to warm place or warm wheather to be back. As for me, I want to leave the country. Here is very cold.)

太挺冷了的

Correction based on your English and its tone.

在我很小很小的时候，我有个到梦去外国的夢想。今年我已經21岁了, 还沒有到我决不去过外国啊。现在我还住在一个小鎮裡小的城市, 这个城市离资本距离首都有200千米 [or 公里, what you wrote was meters]。这儿一连二十天天气很冷。天气非常寒冷, 一直有二＋天了. 不过我喜爱寒冷的天气，但我朋友病感冒了。他有头疼，流鼻涕而发烧了。他不想去看医生病。[看病 can also mean to see the patient, this way is clearer and not have to depend on context.] 学生医住院不很好，是因有愤怒医生脾气暴躁。（这个问题有每个俄城医生都是这样的市）。天天天气如此寒太冷，所以因此有很多人病感冒了。人人我们都想到比較温暖的去热地方或想天气会热来了。至于我，我想出回国。这/辺/裡/处/个地方/是地太挺冷了的。
(When I was very little, I have a dream to go abroad. In this year I turned 21. I've never been abroad. Now I live in a very small town. This town is 200 km away from capital. For 20 days in a row, the weather is very cold wheather here. However, I like cold wheather, but my friend fell ill. He has headaches, flowing nasal drips and a fever. He doesn't want to visit a doctor. The Student's hospital is not so good for, there are angry doctors are testy. (This is a problem has with every Russian city). Every day is cold, so many people fell ill. We all want go to a warm place or having the warm wheather to be come back. As for me, I want to leave the country. Here is very Too cold here.)

挺冷的

在我小小很小的时候，我有梦梦想着去 外国/国外。今年我21岁了。我决不从没 去过外国/出过国。现在我住在一个小小很小的城市。这个城市离资本首都有200米千米or公里（远）。这儿一连二十天天气都很寒冷。我喜爱寒冷的天气，但我朋友感冒了。他头疼，流鼻涕，还发烧了。他不想去看病。学生住院医院不很太好，（常）有愤怒易怒的医生。（这个问题有每俄城市每个俄城市都有）。天天天气太冷每天都很冷，所以很多人感冒了。我们都想去热温暖的地方或想天气热来了让天气回暖。至于我，我想回国离开这个国家。这是地方挺冷的这地方是挺冷的。

(When i was very little, I have a dream to go abroad. In this year I turned 21. I've never been abroad. Now I live in a very small town. This town is200 km away from capital. 20 days in row is cold wheather here. I like cold wheather, but my friend fell ill. He's headache, flowing nasal and fever. He doesn't want to visit a doctor. Student's hospital is not so good, there are angry doctors. (This problem has every Russian city). Every day is cold, so many people fell ill. We all want to warm place or warm wheather to be back. As for me, I want to leave the country. Here is very cold.)

挺冷的

在我很小的时候，我有一个梦想是去外国。今年我21岁了。我以前没有去过外国。现在我住在一个小小的城市。这个城市离首都200米。这儿一连二十天都很冷。我喜爱寒冷的天气，但我朋友感冒了。他头疼，流鼻涕，发烧了。他不想去看病。学生医院不很好，有愤怒医生。（每个俄罗斯城市都有这个问题）。天气太冷，所以很多人感冒了。我们都想去温暖的地方或想让天气热起来。至于我，我想回国。这太冷了。 

(When i was very little, I have a dream to go abroad. In this year I turned 21. I've never been abroad. Now I live in a very small town. This town is 200 km away from capital. 20 days in row is cold wheather here. I like cold wheather, but my friend fell ill. He's headache, flowing nasal and fever. He doesn't want to visit a doctor. Student's hospital is not so good, there are angry doctors. (This problem has every Russian city). Every day is cold, so many people fell ill. We all want to warm place or warm wheather to be back. As for me, I want to leave the country. Here is very cold.)