You can make an application to Home Office yourself, but we recommend that you get legal advice to ensure the best outcome. It is recommended that you apply online, although you can also apply by post.
It usually takes two to three months for the Home Office to make a decision on applications after submission. However, the application may take up to six months if the Home Office considers your case to be complex or if there is a backlog of cases. The timeline may currently be longer due to the COVID-19 pandemic.