Prices in Britain are much higher than those in China. In order to save money, you can choose to eat cheap food and then take a part-time job like other students studying in China. If you have the ability, you can do more part-time jobs. This is the best way. There are expenses and income. Although you can't do both, it's better than nothing, right? Buy less things, try not to spend money, don't buy snacks and clothes, just wear and eat.