E-mails from Emily
That is wonderful news! It is what you really wanted, isn't it? Well, they say, "Tired of London is tired of life." If the school is providing an apartment for you, then your main expense is covered.
I have BAD memories of eating school food, especially Chinese school food, but at least you do not have to pay for it （or cook it or do the washing up!）
Therefore your main expense is likely to be transport, but you can reduce this, if you are going to be using the buses or the Tube regularly, by buying cards that let you travel much more cheaply. Or walk! By the way, proper Londoners always call it "the Tube" or "the Underground", not "the subway" or "the metro".
London theatre （we are not going to agree on the spelling）tickets are outrageously expensive. The good news is that the plays and shows are simply the best, anywhere in the world! And remember that there are lots of things, even in London, that are free. Yes, it will be hard to believe, especially when you first arrive in the Modern Babylon, but there really are some free things to do in London. Start doing your research now and save some money.
Yes, I do go on a lot about money, but alas life is a bit awkward if you do not have enough. You will also discover two quaint English traditions: Income Tax and National Insurance.
London is really an international city, especially as most English people cannot afford to live there. You can walk down Oxford Street and you will hear Japanese, Arabic, Russian and lots of other languages, but not English! So I hope that you will occasionally get out of London and see the rest of the UK.
Although you wrote that your salary in London will be smaller, you might still be better off, if your accommodation and food are paid for. In fact, you should be able to save some money. That is the theory... So when are you buying your house in Bulgaria?
Renewed best wishes and congratulations!