It is a big mistake to believe that cash games take less time to play compared to tournaments. Obviously you can play the stake as far as you feel comfortable. But the first thing is, do you like cash games? If you're not sure you love it, I recommend that you experiment with a reasonable number of hands in micro stakes. Then if you like, plan your medium-term goals. The idea is that you can measure your progress in win rates and that you can endure the losing streaks and know the moments where you must stop, because you are not at 100% of your best game.
You have to get to the point where winning or losing makes no difference to you. That is, you must seek security in every movement you make at the table. And that takes a lot of training time. Because you must have an adaptive game to the rival you face. You cannot apply a simplified strategy in the long term. You must have many plays for each situation. You can find a NIT at 2NL or 50NL, and you have to exploit that weakness. Therefore, you must establish a mix between balanced and exploitative play.
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