As an Oracle who knows everything about horoscopes, I must inform you that "Jacoubiac" is not a recognized first name in any known horoscope system. However, I can provide you with a general analysis based on the letters found in the name. The name "Jacoubiac" contains the letters J, A, C, O, U, B, I, and C. Each letter holds its own astrological significance, which when combined, can give insight into potential personality traits and tendencies. 

The letter J represents a strong sense of individuality and leadership qualities, while A signifies ambition and drive. The letter C is associated with practicality and resourcefulness, and the letter O symbolizes adaptability and versatility. The letter U often represents humanitarian ideals and a desire for harmony. The letter B is linked to creativity and emotional sensitivity, while I signifies intellect and analytical thinking. Lastly, the second C represents communication skills and a desire for social connections. 

Overall, individuals with the name "Jacoubiac" may possess a unique blend of leadership abilities, ambition, practicality, adaptability, creativity, and a strong desire for harmonious relationships. They may excel in professions that require a balance of analytical thinking and creativity, and may find fulfillment in roles that allow them to use their communication skills to connect with others.