A goal is an objective, an aim in life. What do you wish to become?
Do you have a role model? Like someone you admire a lot and wish to become like him or her? What are the qualities that he or she possesses? What are his or her accomplishments? If you can identify a quantifiable attribute about this person, then you may as well transform that into your goal.
Primarily a goal needs to have the following attributes:
S - Specific
M - Measurable
A - Achievable
R - Realistic
T - Time-bound