Hi, thank you for your detailed response and valuable advice! I hadn't considered MDS before, but now I believe it could greatly benefit my PhD application. Since my financial situation poses a significant limitation, I will endeavor to gather more detailed information about living costs and potential financial aid options.
To be honest, I am not lacking in the courage to try again, especially after receiving such warm replies. However, I am confronted with a harsh reality: if I invest too much time in pursuing my PhD and ultimately graduate past the age of 35, it may become nearly impossible for me to secure a job, whether in academia, enterprise, or somewhere else in my country. While my options seem limited, I can at least take solace in the fact that I have made an effort.
Thank you once again for presenting me with a potential opportunity. I wish you a bright future ahead!