Speech is important for making friends.

My daughter is 15 months old and does not accept any food I give her, except for some that she can get her hands on, such as cheese, cookies, bread, and some french fries. We are still breastfeeding, but I try to eat fruit creams and soups,  but nothing seems to work. I have pushed her a lot, but I can't force her. Has it happened to anyone else? What can I do?