There is a solid reason that "how" is first in this well-known statement. While each of these verbs are important, "how" indelibly affects the result including how you feel about it.
Quality how creates quality results.
Thinking about this well worn phrase, it can take on enormous value when considered as an internal path to success.
How: positively and thoroughly.
When: when else is better than now?
Where: here. This is your starting place, nowhere else.
Why: this step is important
How is the beginning and the end because how you feel determines the quality of the end and how you will interact with it going forward.