Some employers will give you credit for having a higher degree but others won't, and having an inappropriate further degree could even, in some cases, worsen your chances. Here are some reasons which have been given in favour of doing postgraduate study, and some reasons which have been given against the idea. In each case there are some comments. Use them to help you think about whether postgraduate study is the right step for you. I will become 'overqualified' This can be a danger if you look for work not related to your postgraduate study, less so if the work is closely connected.
Finance can be a big problem, but many people have found ways to get the money together.
Any questions Postgraduate courses are a product for sale and it is worth shopping around. If at all possible, visit the institutions and talk to staff, students, and recent graduates. With the exception of some vocational courses, there is no central clearing house and you will need to apply individually to each course. Many vocational courses, such as teacher training, start making offers in the autumn term. If you are late in applying you may find the places have been filled.