I've been in that exact seat - the marketing manager whose efforts feel painted in broad strokes nobody reads. Here's what shifted the perception for me.
First, get everything into a visible system. Monday, Slack, whatever - but make it visual. Break down the big campaigns into tiny, digestible wins. Every email drafted, every landing page tweaked, every analyst brief sent. Keep a running backlog of everything you've touched. Then, at review time (and if you haven't had one in two years, absolutely demand one), present it like a brand portfolio. That folder becomes the physical proof of your workload. Either your manager will finally see the breadth, or they'll realise they're fundamentally unequipped to manage that level of output.
But the real pivot? Translating every sparkly marketing initiative into hard currency. That's the language the C-suite inhales. Set up tracking - even basic UTM parameters - and start connecting leads to quoted revenue. Don't just report "we ran a webinar"; say "that webinar generated £14k in pipeline this quarter." Numbers become a shield and a sword.
Your colleagues don't speak marketer-ese, they speak margin. So make your work visible in their vocabulary. Operate as if you already own the whole department - that ownership mindset is the most luminous asset you have. I built my whole track record on that same fierce instinct. You'll run it someday. Maybe not here, but soon.