Hi Armand. Let me also congratulate you on becoming certified! Once certified, there are so many things/details for you to consider that it’s difficult, if not impossible, to narrow it down to a “main priority.” That being said, I think that one of the first things you should begin to do (of course once you’ve set-up all of the necessary details necessary for you to begin training – e.g. liability insurance, bank account etc) is to get yourself ‘out there’ and let people know that you are a certified trainer and are ready to take on new clients. Certifications are great, but without clients, they are just a piece of paper 🙂
Get out there, introduce yourself, be willing to ask questions and listen closely to the answers.
Good luck and welcome!