Probably not fired yet! but i would start looking for another job, if you have complaints about the way things are there is a proper and correct way to bring up your concerns, shooting off at the mouth isnt one of them. Anyway they have paid for you to do a course they dont have to ask how it was for you, and how did you do etc, they must have thought it was worth you doing but weather they use your new skills or not is up to them.