Can someone explain the Q value in Q learning

Question

The bellman equation was easy before MDB. I understood that the Q value is the value for the action that will be made but that's pretty much it.

Answer 1

I got couple courses from udemy but the thing is that it has difficulty terms and formules that I can't understand because english is not my first language.

Answer 2

I just try to watch 5 recent episodes again. I want to learn this as well as possible.
11$ AI courses on udemy 94% off
I can't believe I'm studying on summer vacation lol.