25 M. I need career advice. Any suggestions would help.

I completed my MSc in Data Science in April 2023. I was placed in a company but there was a delay in onboarding. I completed multiple internships and tried a lot to land a full-time job but I couldn't. They finally onboarded me in May 2024. Turns out, they've assigned me full-stack developer role and for that they provided online materials to practice Java. I was very weak in Java, so even after trying hard I couldn't pass the exam. We were 38 in our batch and 28(including me) got terminated in August 2024 because we did not pass the exam in Java even after 2 chances. Since then, I am in the same loop of applying for jobs and upskilling myself. I've tried every possible thing to land a job but I am not receiving any good news. I've asked referrals, sent cold mails, etc. Any suggestions would really be helpful.