Unless they're desperate for students, you're unlikely to get a place at UWE if you only started doing graphic design recently. Typically, students being offered places will have studied graphic design at college (A Level or BTEC) and quite possibly will have studied a foundation year too. There's more info about those in the thread pinned to the top of this section.
If you're convinced you want to study at UWE, then definitely research local foundation courses to you. However, once you've done a foundation year, you might well find that UWE isn't the right course for you. Don't rush into accepting a place at a Uni this year, take your time and you're more likely to find the right degree course.