The subreddit r/asknetsec is a about „cyber“ career and learning advice, and will help you.
Doing CTFs and reading the „solutions“ (https://ctftime.org) is immensely valuable. Start no higher than https://picoctf.org or you will be overwhelmed.
Harder CTFs will cover finding & exploiting new vulnerabilities. This is a good entry point: https://exploit.education
For real-world challenges I recommend https://www.hackthebox.com .
To get started, watch videos where other people solve these challenges (e.g. https://m.youtube.com/channel/UC0ZTPkdxlAKf-V33tqXwi3Q )
You will not get around learning the fundamentals is you don’t cover them already: Basic Computer Science, basic networking, and programming (python and C are useful. To learn binary exploitation, you MUST know C and assembly language first).
Web hacking is its own discipline. „The tangled web“ is a great book.