Job hunting and interview prep strategy

Hi all, I’ve been job hunting for a while as I was laid off a couple months ago. I’ve just been applying to 100s of jobs, treating the job hunt as my full time job and while I’ve gotten ~5 interviews (out of like ~500), I’ve failed to move forward through the technical interview phases.

I didn’t expect the difficulty level of the interviews, and mostly just prepped with YouTube tutorials and reading Cracking the Coding Interview book - but now I am realizing I got to really up my technical interview game.

What is your go to strategy for tech job hunting? What resources were most helpful for you getting a job in this current market?