Well I failed a uni subject looks like that's fucked up my GPA

Fuck, gonna struggle to get a graduate position now. Don't know what to do.
And that girl from work I like messaged me asking if I'm working on Saturday, I just responded with 'I think so'. I am working this Saturday, I just don't know what to expect for why she asked me that, I'm guessing it's 'can you cover my shift?' which I wouldn't want to do even though I could because it would be the maximum hours I could work because I won't be home till late Friday Night after seeing Foo Fighters and I'd rather start at 2pm Saturday than 9am. I'm just speculating but I know theres a music festival on this Saturday which she went to last year so that's what I'm leaning towards.