hey,
i know what you mean about 'writer's block' in art....i have had my fair share of those problems! finally though, its now getting under way, and i actually know exactly what i'm doing...prob. just finding the time to finish it is the worst part now. it takes a long time hey? so how is yours going? i am practically self-taught in photoshop, but i have digital imaging class once a week, but in that class i just do my own work anyway... getting lessons would only really help you to learn the basics...like what the tools are,but obviously you know that already, so you just have to practice really...
i also want to do graphic design at uni, but i think i will probably end up doing design (in general) and then switch to digital media or something like that, maybe even fashion, i'm not sure yet. i have always wanted to do graphic, but it didn't help to read that about how bad graphic design is! oh well, i guess you have to hear it from others as well. good luck with your art.