What is the best way to start your project?

Question

In some cases there are some people are a real programers but when they start they mess up.
so what is the best way to start a project

Answer 1

the best way to start a new project is not start coding immedintly but in fact the best way is make plan for it and when you coding make sure you use comments for making your code more clear.
give us other opnions and let's learn the best way.

Answer 2

consider how to test (test driven development) and critical conditions (which errors can happen)