Hmmm... I'd say that you better start coding and stop reading. It will be a mess at first but you have to gain some experience.
I don't want to discourage you but you probably won't have thousands of users on your apps at the same time at the beginning so don't bother with creating scalable sites yet. One day, you'll have some slowness on your app and you'll learn it at this moment.
I don't want to discourage you but you probably won't have thousands of users on your apps at the same time at the beginning so don't bother with creating scalable sites yet. One day, you'll have some slowness on your app and you'll learn it at this moment.