However, I think I won't be able to understand DSA without learning discrete mathematics first.
So, what do you say? To learn discrete math, I need theory of computation/automata theory. So, it's a kind of never ending loop if I can't decide the level of abstraction that I want to play with.
For example:
> To learn discrete math, I need theory of computation/automata theory.
Not for undergraduate discrete math.
For example, at UC Berkeley, CS70 - “Discrete Mathematics and Probability Theory” - suggests
> Sophomore mathematical maturity, and programming experience equivalent to that gained with a score of 3 or above on the Advanced Placement Computer Science A exam.
https://www2.eecs.berkeley.edu/Courses/CS70/
In this context, sophomore mathematical maturity means having taken college-level Calc I and Calc II. Having taken Intro to Statistics may be recommended.
Getting an AP CS score of 3 or above means the student took Intro to Computer Science in highschool and got a score on the US-wide standardized test for that subject that will let them skip Intro to CS at most US colleges.
The link in my comment is to a listing in a course catalog.