Theres a problem with. Starting a world, changing characters, feeding animals, and inviting friends

When I enter a world it would sometimes totally restart without me doing it, I'm not able to change the character skin unless skins were taken off for the new update, I put my character on the steve character and it shows up the girl character, when im signed into my account when I go to invite friends it says oops looks like your not signed into your microsoft account, and when I go to feed animals like cows, I can feed one but the others are hard to get to and feed if there ina small enclosed area, to breed them and get the drops