In order to make an informed career decision, you should look at your values,  interests, personality  and skills.
Values
Work values play an important role in one's job  satisfaction, include autonomy, prestige, security, interpersonal  relations, helping others, flexible work schedule, outdoor work, leisure  time, and high salary. Think about how important each value is to you.  
Interests
What are your likes and dislikes  regarding various activities. Examples of interests are reading, running, gardening, and  knitting.   It helps to know what type of work you enjoy doing.
Personality
What career suits your personality.  Look at your individual traits, motivational  drives, needs, and attitudes. The most frequently used personality  inventory is the Myers-Briggs Type Indicator(MBTI).  
Skills
Make a list of your skills. You can make some changes by acquiring the skills you  need for a particular career.