New smartphone UI isn't friendly

1 month ago,I bought a new smartphone in Taiwan,but the system UI doesn't friedly to the person,I thank the old one is better than new one.
When i used phone in the first time, i could not found my address book button and I dont know how to  setting the phone,however the  address book is include the calling button,and then I didn't know how to find the setting button becaus i want to setting my FaceBook account.
All of button, I could found  easily in the old one ,because the old phone is design automatically,so the old phone  was mad a user with a good experience.