I don't know

Actually I do not know what to write tonight, although it has been awhile since I wrote here.
Despite the fact my leaving for the UK is due to arrive, I am somewhat stressed because of my job. My concern is about not being able up to keep up a conversation with a real English speaker. 
Anyway, let us talk about the bright side. I do not know how, but I managed to put aside all the necessary money to stay abroad for awhile. It is a mystery to me, but I cannot help spending a bunch of money on useless things.
I am planning to stay two days in London before the course starts. London is a lovely city with its pro and cons, but we all acknowledge it as the European New York.
"Great Expectations" it is not just the title of a Dickens' book, it also reflects what I feel when I have to talk about my future; and, despite my age, I have no intention of turning my dreams into failure.

Please correct just the grammar, otherwise I cannnot discern whether I did a grammar mistake or something else. Thanks

You will do fine! Good luck!