1. Choose the right school and major: British mathematics major enjoys a high reputation in the world, but the teaching quality and research direction of different schools and majors may be different. So you need to choose the most suitable school and major according to your interests and career planning.

2. Prepare English ability in advance: British universities usually require international students to have a certain level of English, such as IELTS or TOEFL scores. Therefore, you need to prepare and take these exams in advance to prove your English ability.

3. Understand the visa policy: The visa application process for British students may be complicated, so you need to know and prepare all the necessary documents and materials in advance. In addition, you need to know the cost of living in Britain to ensure that you have enough financial support.

4. Adapt to the new learning environment: The education system in Britain may be different from that in your hometown, and it may take you some time to adapt. Besides, you need to learn how to communicate with students and teachers from different cultural backgrounds.

5. Stay healthy: Studying abroad may bring some pressure, so you need to learn how to stay healthy. You can take part in some sports activities or look for activities that can help you relax and decompress.

6. Make good use of school resources: British universities usually provide some academic and living resources, such as libraries, career counseling and psychological counseling. You need to make full use of these resources to improve your study and life quality.

7. Build interpersonal relationships: You can build interpersonal relationships by participating in school club activities and academic conferences. This will not only help you better integrate into the new environment, but also help your future career development.