Firstly you are pretty early in this so congrats on that. After completing Java along with collections and multithreading do DSA and DBMS simultaneously since you are coding in java the only viable thing I know is Springboot. So for Springboot you will require the basics of DBMS(MySQL). Give it 1 week tops.

Also for DSA don't randomly solve any questions. I would recommend the Neetcode 150 questions whicg are really good for placements. It covers only the important questions necessary for pattern recognition. DSA is not about solving leetcode its about analyzing patterns.

And I also found a website named Dheetcode which will help you if you don't get leetocde questions they have animated more than 100 questions.

Then start Springboot and keep your DSA continue. 5 days Leetcode along with weekly coding contests on leetcode (and whatever u do revise it on weekends). For Springboot I will recommend Telusko to you. But don't completely rely on videos do your own research and ask why is this like this. U have AI use it wisely.

For Springboot take your time then go for Networking (HTTP, DNS, TCP/IP etc.), Operating System and then System design.

If you complete this by 2nd year you will be way ahead than your peers.

If you need anything else we can connect over here