Use the accelerator pedal like you have an egg under your foot.
Imagine you have an egg between the tip of the sole of your shoe and your accelerator.
The game is not to crush the egg; or to let it fall. Nothing prevents you from accelerating, but not violently or you crush the egg. On the other hand, if you release the pedal too quickly, the egg escapes and breaks.
Sure, it’s a metaphor but it works perfectly. If you accelerate abruptly when starting, or if you release the accelerator to brake suddenly, you increase your consumption. The game of the egg under foot requires you to anticipate without abruptness.
Enjoy your Sunday and Easter time!