Based on my own experience, I got the full maintenance loan and grant, plus some bursaries - unless you want to either be constantly borrowing off parents for emergency unexpected expenses or living the most frugal life ever and missing out on the fun of being a student, I highly recommend getting a part time job even if it’s a day or two a week. Budgeting is certainly effective but realistically unexpected things happen and people slip up. Plus uni is about so much more than studying, you might want to visit nearby places or travel in your breaks, get involved with new activities, join clubs which might have maintenance fees, etc. PLUS more importantly (unless you’re doing medicine or something else where career is pretty much guaranteed) you will really thank yourself for getting some work experience. If you work in a bar or cafe or something the social life is a nice aspect as well. And yes it’s harder to work and study at the same time but it is in my opinion a lot better than trying to live totally on maintenance payments.