Making a startup is both an art and a science. The part which is purely "art", the bigger part, you will have to learn through actual doing, but the "science" part, the small part which yields repeatable results in isolated areas of the craft, is something you can also learn from others. Sam did a good job summarizing all of that which is known to YC to be repeatable.
If all of the article rings true and obvious, you're done reading, it's only doing from now on.
If it reads unclear, you should watch and read the supporting material.
If it all rings hollow and devoid of substance, you will, too, have to start doing. Eventually you will come to similar conclusions under your own power (which is why I called it "repeatable" - it repeats quite often), and then your reading history will make it easier for you to come to terms with your own experience.
If all of the article rings true and obvious, you're done reading, it's only doing from now on.
If it reads unclear, you should watch and read the supporting material.
If it all rings hollow and devoid of substance, you will, too, have to start doing. Eventually you will come to similar conclusions under your own power (which is why I called it "repeatable" - it repeats quite often), and then your reading history will make it easier for you to come to terms with your own experience.