Flashcard are just easy to implement application of it.
Yes among flashcards, anki is the most popular. But naive use of it leads to a lot of pain and tons of problems, you have to learn how to use anki.
Default settings are ok although I'd say 2 things that are counter to some common advice there:
* Actually use all 4 ratings buttons, and come up with a scheme for when. For me it was 1: missed it, 2: had to guess, but guessed right, 3: got it, 4: got it without even reading the entire prompt
* If you're insistent on the (IMO bad advice) "only use 1 and 3 keys" thing, install the "Straight Rewards" plugin. Without it, all your ease factors will decay to their lowest level (130% by default) since '1' lowers it, but '3' does not raise it, so it can only go down. With "Straight Rewards", it'll up the ease factor for you gently as you rate a card '3' enough times in a row.
Alternately, install the FSRS4Anki plugin. It's more work, but is a more dynamic scheduler. Requires the V3 Anki scheduler being enabled, and one of the more later versions. Do some reading on this before you try it; you can always go back, but it's not been proven yet to be substantially better than SM2.
If you really WANT to learn something you cannot rely on such accidents happening. Accidents are not a method.
That's not really SRS though; a key part of SRS is the heuristic for when you next get exposed to the thing you're trying to remember based on your previous "got it"/"missed it" response. I suppose "every day" is one such heuristic, but it's not really in the spirit of SRS.
And you're mixing up enjoying the content with the mechanics of an SRS system.