What are the pros and cons of studying abroad in London?

I'm studying abroad in London.Actuary,It isn't the first experience to study abroad.
I studied abroad in China 4 years ago.so I can explain from my own experiences.
I know there are some of the differences between England and China.
but,they have something in common with each other.

On the plus side,We can find out English is beautiful.
For instance, We can meet people of different nationalities in London.
English, French, Italian, American, Indian, Russian, Chinese, Korean, etc.
They speak English.If We can speak English, we can talk to everyone and will be able to make friends.
This is one reason to study abroad in London.
Another point is that, It’s a great opportunity to learn British histories and culture through the language.
All in all, We might want to learn British histories and culture.
It will be of Our help.

However, for every plus there is a minus.For one thing, getting used to a foreign culture is a process that takes some time.
We have to speak English, find a place to live, eat a foreign food, etc.
It's not easy for people that English is not native language.
What is more, we need a lot of money to study abroad. we have to pay tuition fee, cost of meal, train fare, etc.
In addition, it's difficult for our to see ours family and friends who lives in ours hometown.
In fact, Chaces are We sometimes fell sad lonely.

To sum up, it is not given to everybody to study abroad.We had better avail ourself of this opportunity.
In my opinion, studying abroad was good decision for me.
I think studying abroad is opportunity to change my life and values.
Although cost isn't cheap, if you can study abroad, you should try it.