Almost everyone who has studied for an exam in India has a version of the same evening. It is late, there is one step in one problem that does not follow, and the only available options are to guess, to copy, or to leave it. All three of those end the same way: the notebook looks finished and the concept is not.
What makes it worse is that the step is usually small. Not the whole chapter, not the subject, one move. Splitting the middle term when the leading coefficient is not one. Resolving a vector into components with the right signs. Two minutes of explanation would settle it, and there is nowhere to get two minutes of explanation at 21:40.
Coaching classes are a real answer to a different problem. They provide pace, structure and accountability for a group. What a class structurally cannot do is notice that one student's difficulty with quadratics is actually a factorising problem from two years ago, or answer the same question a fourth time without the student paying a social cost for asking.
So the gaps accumulate quietly. They are not visible in a test score, which reports the symptom rather than the cause. They surface two terms later, at which point the fix costs four times as much and the student has usually concluded that the subject is not for them.
NYGTLYF is an attempt at the narrow thing that closes that loop: something that answers the doubt in the minute it exists, works out which concept underneath it actually broke, generates practice aimed at that concept rather than the chapter it sits in, and refuses to move on until the evidence says the concept holds.
It is deliberately not a marketplace, not a course library, and not a tool an institute buys on a student's behalf. It is one student, one ladder, and a tutor with no patience to run out of.