Hey, im a 3rd year nursing student and I find it a struggle even as a young student living at home with parents and pay no rent at all!
I work for a healthcare agency so I basically tell them when im available around uni and placement and they find work for me and give me shifts.
It is hard to survive without a job on the side but not impossible! my friend hasn't worked on the side and she is doing fine, although she doesn't drive so doesn't have to pay those kind of expenses, but public transport is still quite dear and you hardly get anything back. But nonetheless she manages.
If I were you id look into doing agency healthcare on the side as its more flexable. But if you can cut back on other things like take-aways, nights out etc then you might be alright without working. Depends on your own commitments and what you spend monthly I guess.