Why is it better to receive support when achieving goals ?

You are more likely to succeed if you don't want to let those around you down and if you have the additional support you need when the going ultimately gets tough. If the people in your life don't understand your goal, or aren't willing to provide assistance, then it is important that you look elsewhere.

Explanation:

appeal to ethos is your answer.

greet them:

buenas noches.

that is considered night time which is when "good night" is used.