If there is one flaw Kina Skywalker has, it is that she has never properly learned how to stop thinking about what could go wrong, what is wrong, how she could be wrong; it is a survival strategy, on Tatooine, that is so deeply encouraged as to have become deeply engrained in her psyche.
This, too, is not strictly adaptive.
For instance, upon detecting the stream of hypernet traffic associated with Dooku make transit to one of the Suspicious Deleted Spots she's differentiated out from the galactic maps ca. the time the Jedi noticed theirs had been tampered with, she imagines quite a few possibilities for what he could be doing there, from the banal-but-still-mildly-concerning "recruiting apprentices, like he's been saying he planned to do for a while now" to the "and if this is true, we're probably kriffed" of "visiting the Super Duper Extra Secret Superweapon Project that Palpatine hypothetically started and stashed in one of those blind spots where the Order oughtn't have noticed it", and plays 'but-if-he-knows-she-knows' with her model of Dooku...which is frustratingly open-ended, because she truly doesn't know him well enough to predict him with high enough fidelity, not even after all this -
She knows he is arrogant. She knows there is some sort of secret project somewhere in the galaxy that was Palpatine's get. She knows Palpatine was/is a cruel, cruel man. She knows that Dooku would not hesitate to be cruel, if he thought it was the correct thing to do, and would consider himself capable of turning even Palpatine's schemes to better ends than were intended by their designer.
(She doesn't think he's totally wrong...but she thinks he will be too used to it to assess the risks correctly.)
She knows there's probably other Darkside Force users out there.
She's going to need to train more, in the Force, in the blaster, in mechanisms and code modules, and of course in the lightsaber, if she wants to have a chance at surviving the turbulent times to come - because even in the scenarios where Dooku only found apprentices...well. The apprentice betrays the master, time after time. That is simply what Sith do.
She really hopes Dooku can teach them how to not be one.