Need guidance

Hello everyone;

I need your help. I am a Computer Science student about to reach my final year in the coming two months. I heard that we will be having placements in July and the competition is fierce since there are thousands and thousands of students looking for job/internship.

Till date; I have done frontend development and I am good with HTML, CSS, and Bootstrap. I know theoratical portion of JavaScript and jQuery but get stuck when told to implement logic in problem solving. [I also know React.js but very basic like routing, states and props, etc. since I was not able to give much time to it]

Addtionally; I also did a 3month internship in this domain and know how to get the work done but technical interview may become a problem. [I got this opportunity through referral]

I will be having my End Sem exams next week and it will go on for 10-12days. After that; I will be able to give full-time to learning and will have probably 1 or 1.5 month to upskill myself.

I am planning to do DSA and Full-Stack Development so can anyone guide me on how can I become capable to compete and outperform my peers?

It's just that I think I have wasted my 3 years of college and have fear that I won't be placed since I am lagging so much.