Commitment means staying loyal to what you said were going to do long after the mood you said it in has left you.
The reason why so many “New Year’s Resolutions” fail is because people make their declarations in a surge of emotions filled with hopefulness about the new year, then once that surge passes & they get back into the daily routine of life, they don’t have the motivation to keep the resolution. When you decide to make a commitment to yourself, you need to decide that even when you don’t feel like it, or when nobody’s looking, you will still hold yourself to your word. Best wishes to your success!