No matter what age you are or what your knowledge level of the English language is at the moment, you can surely benefit from progressing and learning it quicker. Sometimes that is necessary to prepare for the upcoming tests, while other times you just need to polish up your business English in order to apply for a new job but one thing is for certain, you'd like the biggest possible progression in the least amount of time. If that is the case I'd strongly suggest going to an English school London as that is the most efficient way of learning or mastering the English langue that is going to give you the biggest bang for buck!
You can find an English school London that will cater to your needs - there are programs for students, adults, professionals, people looking to prepare for a test etc. there are also group and individual classes that you get to choose from. Finally there are various levels of progression from beginner all the way to advanced classes that are ideal for speakers who are already very well versed in English but are just looking to master it and take it to a new level.
The reason why it's best to go to English school London in order to really learn this langue is that you are not only going to get the best education but the education won't stop once the class is over. You will stay surrounded by native speakers and the way of life and that is going to make the big difference. The passive learning methods are the best way to integrate what you learned in theory into practice and you can count on your progress to be much faster if you are taking a class in person than if you are just following an online course or an mp3 lesson that you bought. Only thing you need to make sure of is that you are choosing the very best class out there in the best school for you!