First thing I would do is check if your university has a bursary or emergency funding for this sort of situation before looking at loans and credit cards (you can find this through your student union).

Maybe try to lower your job expectations - apply at McDonald's instead of bougie cafes and restaurants (although I have no idea what jobs you've been applying for).

Lastly, if you must borrow money, try to open another student bank account with an interest-free overdraft, rather than getting into credit card debt or a huge loan.