Nursing would suit your interests and although the pay isn't great, it will be easy to find employment. As you gain more experience, you will get promoted with more pay.
On the other hand, I would go for English. English would suit your interest in literature, and it is a degree that has many transferrable skills, opening up the doors to further study and academia, or numerous career paths. Having said that, you would need to concentrate on getting the relevant work experience for getting the graduate job alongside your studies. Picking English won't help you with picking a career, so you will still need to think on what path you want to take after graduating.
Having read your post, you do mention that you only have vague interests and are not sure if you can sustain your interest long enough to complete a degree. In this case, I would suggest taking some time out rather than rushing into a degree only to quit later, wasting your time and money. If possible, talk to a careers adviser - they can help you with what options you could take. Perhaps take some time to travel, volunteer, maybe get some paid work or work experience. This will help you get a more concrete idea on what your interests are and what you want to do. If you wanted to go to uni, you can make a more informed choice this way. There is no rush to go to uni, many people go to study later on in life.