It is easier for British universities to apply for graduate students than for undergraduates. Why? Because British students don't go to graduate school, the school cares about students very much. Therefore, as long as your final grade can reach two or two, you have a good chance of getting an admission notice from an ordinary university.
In fact, the most important thing to apply for graduate students is the recommendation letter. You ask your substitute teacher with the best academic record to write you a letter of recommendation. Teachers generally can't remember people. Unless you are a student who often discusses problems with him, you can only refer to your grades before writing a recommendation letter. So please ask the teacher who took the best three courses to write a recommendation letter for you. It would be more perfect if their titles were professors or doctors. Of course, ordinary lecturers can also do it.
I wish you success and the speed of doubt!