When exploring a potential career, it's important to interview people who are already working in that field. There are three questions that you need to get the answers to:
1) "What is a day at work like?"
This will tell you a lot about the job, and give you an indication of whether or not it will be a good fit.
2) "How did he/she qualify for the position?"
You will need to know what degrees or certifications are required to obtain this particular career.
3) "What does he/she like most and least about the job?"
Find out what the person really enjoys, and also the parts that are not so desirable. Every career comes with good and bad parts. Making sure the good outweighs the bad is very important.