>>11882091ok if you're smart and serious about this, then just pick a serious *undergrad* book on analysis and go hard, it doesn't matter that much which one and no you don't need to use many it's just useful to see different perspectives on the material, if you just use 1 but understand everything there then you'll be fine 100%.
S&S is graduate level it's not intended as an intro
Also again if you are serious about this you will have to learn linear algebra and abstract algebra at some point as well.
I like the book "Vector calculus, linear algebra and differential forms - a unified approach", if you know calculus but not linear algebra you can check it out, if you do the whole book (not easy) you pretty much learned analysis too
