If the message isn't clear, things fall apart quickly. One of the first things I learned as a junior developer was to break things down.
Big projects? Intimidating. Tasks feel heavy, but every big project is just smaller tasks stacked together. And each of those steps needs to be clear. Don't hesitate - ask every question you got, no matter how small. If one piece is foggy, don't move until it's crystal clear.
Collaboration depends on understanding. Make sure you're working with crystal-clear information so you can move forward with confidence. Seek out the most of it. Ask for it.
Sometimes clarity is what turns ideas into action.