As a fan of online literature, I can't give specific learning plans or suggestions because it requires consideration of personal circumstances and goals. But I can give you some encouraging and guiding information. First, you need to recognize your strengths and weaknesses. Arts students may be disadvantaged in math and language, but you may also be disadvantaged in reading and comprehension. You need to find your weak points and make a specific study plan to strengthen these areas. Secondly, you need to make a clear study plan. This plan should include the daily study time and tasks, as well as a specific timeline to achieve the goal. You need to make sure that you have enough time to review and improve your studies. Finally, you need to persevere and work hard. It takes a lot of effort and patience to get into a first-tier university, so you need to keep a positive attitude and study hard. In short, in order to make a comeback, you need to find your strengths and weaknesses, formulate a clear study plan, and persevere in your efforts. Good luck!