I got 45 days free now and want to spend some time to improve my pokergame.

I have never done any Work offtable, so i dont know were to start :-) i got a pt4 license and comfirmed newbie to use it.

How do i start doing any offtable Work?

I dont know what to improve or how to find litterature to studdy. I can watch videos but i dont get the fundementals rigth by doing that.
I want to beat mtts low stakke
Hope you can help.
Have a Nice day 😄