London is an amazing city. You just have to get used to it, like any other place. Find your corner of heaven (there are many in London).
Especially if you are a creative person, London will stimulate and inspire you endlessly.
I have to mention the above underlined Brexit mess, but you can read about that on the news through a basic Google search. Just be aware that things are going to change quite drastically; nobody knows how or exactly when, but it's inevitable...so it seems according to Theresa May's last public speech.
If you look up London on wikipedia, you'll learn that along with New York, it's the most multicultural city of the globe. Yet it retains a very profound and vibrant English identity.
London is a city where you can find whatever you may be looking for, literally. Bare in mind that it is quite expensive and quite demanding in terms of energies, but again, this comes down to who you are, your income and your lifestyle.
You may like a posh and chic neighbourhood like Holland Park, and enjoy the Vintage market in Portobello road, or prefer the hype of Broadway Market, infested by hipsters and creatives of all sorts (even bankers camouflage themselves as hipsters there, just because it's cool to look creative!).
London is the most important financial center after New York. Did you know? you'll hear a lot of money talk.
The NHS has gone to shit...so be ready to pay great amounts for private health care, unless you can afford to loose endless hours of your precious life running around hopelessly to find someone who actually cares about you.
The night life could improve a great deal. Drinking is very expensive, and parties are usually overpriced for what they offer. All the best parties are not that easy to find! DUH!!...
the rave scene has gone legal...so not so many underground parties anymore, rare.
Cult clubs like Fabric or the EGG struggle to keep up with the pressing local administration that would rather send them all out of zone one and speculate with real estate firms.
Anyways...there are a lot of theme parties such as Secret Cinema and others that you'll find asking here and there in Brick Lane (aka Hipster's hangout).
If you like books, you can subscribe to the mighty British Library, one of the most important libraries in the entire world.
Well...I could keep going forever listing all the amazing things that London has to offer. Why don't you just go?
Ok so here is one last thought....once you have spent enough time in London...you kind of need to decide weather that's the place where you are going to settle, or weather you want to leave...
In the first case, well....you will become a Londoner for life, is it good or bad? I can't tell....there is a number of crazies there, that's for sure, but also geniuses and divas and cool cats...
In the second case, London will remain forever in your heart and you'll want to go back to it, again and again...to see the changes and those places you can never forget.