Biblical Answer

Step 1: Understanding the concept of happiness and success

The concept of happiness and success is deeply connected, but they are not the same thing. Happiness is often associated with joy, satisfaction, and contentment, while success can be measured in various ways, such as achievements, wealth, or recognition. However, true happiness comes from within and is often the result of a personal relationship with God.

Step 2: The importance of serving others for happiness

Serving others is a key component of true happiness. When we focus on serving others, we experience happiness through giving, which is a happiness that wont be bad for us. This is in contrast to using others for our own gain, which can lead to unhappiness and destruction. By serving others, we can experience joy and satisfaction, even in the midst of challenges.

Step 3: Celebrating others' success and finding joy in their victories

Celebrating others' success, especially when it reflects positively on us, is a habit that can change everything. It shows that we are willing to put others' needs before our own and find joy in their victories. This is a heart thing, and it requires us to be willing to let go of our own desires for success and recognition. By doing so, we can experience true happiness and satisfaction, which is a result of a personal relationship with God.

The final answer is: $\boxed{There is no final numerical answer to this question. The answer is a comprehensive explanation of how to be happy for others' success, based on the provided information.}$

Note: The final answer is not a numerical value, but a comprehensive explanation of the topic. Therefore, it cannot be boxed as a numerical answer.