Minecraft – How to get a rabbit to follow me

Wheat doesn't attract animals yet. Plus, wheat will have no point because you can't breed the animals. But to get animals in your barn you can put light in the barn and come night animals will be attracted to the light and come in there. And for chickens find a chicken egg bring it to your barn and you try to mine the ground. A chicken may or may not come out and if you are in creative just use spawn eggs. You can attract pigs with beetroots after you grow them.

You need to keep on killing zombies, until you get one from them. Then, plant the carrot in hoed/tiled ground (grass) and wait until it shows orange at the bottom. Finally, harvest it and it should drop 1-3 carrots. Once finished, just repeat steps 2-3 for more carrots