First you have to see what kind of pastry chef you want to become. What is your specialty? Have you specialized in baking? Or have you specialized in chocolate or desserts of candies? You will have to find out what are the requirements of a pastry chef job? Whether you need to take a training program of pastry chef? If you have decided to have your own catering service then you will also have to take proper programs of management and the administrative courses. Then you will also have to decide what kind of certificate or training you are interested in?
The best choice in the field of chef training is diploma, an associate's degree, a certification course otherwise if you have a bachelor degree than it is also a best thing. You can also take some of the full training courses related to pastry chef career. May be you have less chance to choose the courses which are close to your home. Then decide do you want o do your course in same school or want to move in different schools. Then you have to decide your budget, how much you have to pay for your training of pastry chef. Like ways you can get the whole training to become a pastry chef.