My fishing pole won't cast in terraria mobile

So I have worms and other bait but my pole won't cast i tried making a new one and even restarting my phone But still it won't work please help

Well, first off you should make sure you have at least 75 tiles of water (a tile being as big as one block), then you should try using the right on-screen joystick, as that usually puts your bobber in front of you in the water, and if that doesn't work try tapping randomly on the screen which usually puts your bobber pretty far out, and if that doesn't work i don't know what will. To reduce the amount of junk fished, you need 200 tiles of water.