If you will immediately plan to go and settle in the UK, then all you have to have besides a passport is a visa. The country’s rules do apply you must have a visa so you can enter it. You can visit britishlifeskills.com to be able to take an English test and get a visa there.
However, always make sure that all the documents that you have must be right and there is nothing fake if you don’t want to get a serious problem. There are several cases where some tourists do dishonest ways so that the visa application process is accepted. However, you need to know that the embassy always checks strictly for each applicant. If you are known to falsify your documents, whether it is a work certificate, bank reference letter, financial proof, hotel booking, let alone a fake identity, your visa will definitely be rejected. If you don’t want to deal with complicated problems, then you should avoid this as much as possible.