here is a simple thing that helps me animate and tips. - never use 1 speed. use 0.1, 0.01, or the one i like; 0.05. this just makes the animations a bit smoother and less clunky. -movement. when things move you dont need to add every inch, you can have it move slightly in the direction you need then skip to the stop. like the balls in the project. -jiggle wiggle. when things move make them longer and slimmer, then when they hit the other side make them wider and shorter then normal. -frame. make the end and start of movment then fill in the between.
sorry if this is a rlly bad tutorial, just kinda follow the stuff in the project