Hold on, Someone did a tutoriel for this. Lemme find it

Draw LOTS of frames and make sure you dont change proportions, size, or the shape of the thing you are animating to make it look like on smooth movement

Yes yes make sure you can look at the lines and make them straighter and use a lot of frames and make sure the animation is slow looking but you can speed it up and it’ll look like smooth animation AND.... have patience