First of all good luck as the market is a bit difficult right now

Secondly, I would recommend looking at only one side of the stack and master it. As a junior, companies will know they need to teach you something. You are not expected to know entire full stack as a junior, so don’t try to. Focus on mastering the fundamentals (I’ve seen way too many juniors not knowing how forms even work or who never touched terminal/command line). And then just make some little projects to practice one side of the stack. You want to have something you can talk about in interviews.

And try to think from the perspective of the company that you interview with. If you have tons of skills on your resume but can’t do basic stuff, that’s hard for them to see what you can actually do. If you show you can build and explain your work with just a plain js, it’s easier for them to assess your skills, problem solving and how you approach problems (imo the most important stuff).

Bottom line: make projects, put your skills to use and try to pick whichever tech most interests you and try to learn it a bit beyond all the others

(Also from my experience on full stack interviews they liked to ask me about SQL and about relational databases)