First of all, Ken gave some really great feedback to your question. Therefore, I'm going to keep it short and simple.
It is totally awesome and a blessing to obtain the job of your dreams. And, I wish you much success in doing so. One way I believe you can find the perfect job for you is to RESEARCH the different types of jobs you are interested in. Once you find out the skills needed to perform the job, do an assessment of your personality and how you might fit in with a particular company. Once you narrow it down, try to contact someone in the company who might let you come visit and/or intern there to be sure it's all that you think it is.
And, if you do happen to change directions, don't think of it as necessarily a bad thing. People (adults) continue to grow as well, and therefore, what was once the perfect job simply doesn't cut it anymore. This does not have to be a bad thing. In fact, it could lead to bigger and better prospects!!
Good luck to you!!