>>13133416You seem pretty serious about learning Mathematics so I'll give you some advice that I myself have picked up.
>Regarding studyingFor equations and problems that you regularly get wrong, i suggest using Anki. Don't rely on it excessively however. It can be pretty time consuming to make cards (even with LaTeX) and you might confuse memorisation with actually knowing what's going on. Instead use it liberally, and make sure you understand the idea behind an equation, theorem, etc.
>Regarding booksWhile there are definitely books which many would suggest for a first exposure to a subject (e.g: Stewart<Anything else), at the lower levels, it doesn't make much difference. Even less so given that, as another anon pointed out, your aim is not to master everything in a pedagogical manner, but rather, to become familiar, gain experience, and master it over time through it's presence in higher levels (e.g: mastering Algebra and Trigonometry in Calculus, and mastering Calculus in Analysis). Also, do not opt (always) for the books which many claim have the easiest or best explanations. Sure, the ideas are more digestible, but there is also value in struggling to understand a text, figuring it out, only to find out you found a better way of explaining it which wasn't mentioned, or you found a shortcut of sorts or pattern.
>Regarding learningThis goes without saying, but, follow along with pen and paper (it's more fancy), and make sure you understand what's being put forth to the point where you don't necessarily have it all under wraps, but rather, to a point where you can work with it, and you have the gist of it. Otherwise you might spend all day fixated on one topic, which surprisingly, has negative effects (see einstellung effect). At the end of each chapter (preferably), test yourself.
>Regarding schedulingIf you are easily distracted, use the Pomodoro technique. If you aren't easily distracted, it's not necessary.