画蛇添足huàshétiānzú(drawing the snake with feet)

杞人忧天 /qǐrényōutiān/Man of Qi worried about sky might fall

守株待兔/shǒuzhūdàitù/sit by a trump and wait for the hare

愚公移山 /yúgōngyíshān/Yugong determined to remove the mountain