Before deciding on a career its good advice to first research and find out as much about the industry as possible.
Get a better understanding of the typical work duties, responsibilities and career prospects of various roles. Find out what the entry requirements are and use a salary calculator to work out your net take home pay. Also enquire about other benefits like pensions or a car allowance etc.
You can then analyse and use this information to make a informed decision about what you want to do.