Doing the train the trainer course realy changed my career. It learned me the fundamental knowledge about blockchain, where it can be applied and more import: when not to use. Besides this the teachers where very dedicated in getting the communication part of the training right by giving exercises that touched my weak spots, in a gentle way, making me more aware of them and learning me how to deal with them.
Having done the training I feel more confident when talking about blockchain, working in projects that use blockchain.