Recent quotes:
Code Tells You How, Comments Tell You Why
You should first strive to make your code as simple as possible to understand without relying on comments as a crutch. Only at the point where the code cannot be made easier to understand should you begin to add comments.
OK, so you built a solution that scratches your itch … but does anyone else care? How many other people have the problem that your software or website addresses? How many other competing solutions are there to choose from? Outside of your personal patient zero case, can you convince anyone to willingly, or even enthusiastically, adopt your solution? That's your first hurdle. Can you even get to number one?