Robertson insisted the players cannot be not satisfied with their current haul and stressed the need to evolve next season to stay ahead of their rivals and build on their success to create a legacy.
"Maybe a few days around my neck [for the medal]," he told Liverpool's official website. "You never get bored of winning trophies – never, never, never.
"Medals are to cherish. It's something that, once you retire, you look back on more but it's so important that when you get it around your neck to enjoy it.
"Moments like these don't happen often but we hope to make it more often for this club. If we can do it, the lads are already legends, we will go on to leave a legacy at this club and that's what we want to do.
"We know every team will improve next year, and it's about us to be there again, being there 100 per cent again and I'm sure we will be."