when you tame one of these guys and you always need hide go and put all your harvesting levels into delicate because you will gather a lot of hide after you kill a dino use c or on xbox you click down on your right joystick i don't know about ps4
To get wood, use normal attack which is slashing with claws. To get berries, use bite attack. To use bite attack on mobile, change multi tap to alt attack 2 and tap with 2 fingers when riding the Therizinosaur. To get fiber, use the tickle with claws move. To use the tickle with claws move on mobile, jump when riding the Therizinosaur. Upbote so people can see!!!