Need career advise

I'm Male - 21. I've completed my Bsc - computer science in 2024. I gave CAT- 2024 and got very very low score. So, my plan is to take any software course, to get a job and do it for 1 or 2 years. Which courses should i learn. I'm thinking to learn Full stack - (python/java/MERN) among these 3, please suggest me a best course so that i can get a job surely :)