There aren't many opportunities in life to radically change direction. This is one of them. At best you're probably not sure what you want to do. At worst you haven't got a clue. Many degree courses don't direct you towards a particular vocation.
Most vacancies are open to anyone, irrespective of degree discipline.
And that in a nutshell is the problem. You have hundreds of options from which to choose something that you'll enjoy doing, develops you for the future, and rewards you well. And although each company is offering something different, a lot of the opportunities often seem similar. A trip to the careers office can be disheartening. Not because the future is bleak, but because it's a daunting process trying to make sense of the mass of information that confronts you.