When you are attempting to communicate with someone, you need to always hold on to the idea that “it’s not what you say, it’s what they hear”. Once you’ve internalised this, it gives you a chance to build the shared pool of meaning that’s required to communicate something effectively.
Communicating “change” is a whole level beyond this basic interaction. Change brings uncertainty. It will take time, and it will affect a number of people.
With these added complexities, you need to bring another skill to bear. You need to be consistent.
You will have to repeat your message many times, in many formats and to many people. A single broadcast in a single medium will not have the impact you hope for.
If you are communicating change, you will have had more time to get used to the idea, to see the benefits and to see the path forwards. Anyone new to the idea will not have this, so your first announcement will feel like a bolt from the blue.
People will react to this in different ways, excitement, shock, even anger. Be ready to refine your message and to share it in different contexts and mediums, but always hold your consistent points in the front of mind.
When you’re sick of saying it, people are starting to get it, so get your head down, craft your message and give it multiple times with consistent focus.