Will not sleep

Since my daughter was just a baby she has never liked sleeping shes now 16 months old, people would always say babies sleep all the time but she would hardly ever sleep and as shes got older its got worse. We are at wits end we don’t know what to do so she will sleep.

Now its takes us 3 to 4 hours to get her to sleep once shes put yo bed and she sleep for about 3 hours then wakes up and no matter what we do she doesn’t go back to sleep. even nap times are a problem now she trys her hardiest not to fall asleep by pulling her hair, kicking , pitching, throwing her dummie and then when she does finally sleep its not long max 2hours. We r so tired and don’t know what to do.