Give her her play time and also take her for outings and draw her intrest towards books. Make sure you reduce screen time and get her interested even in indoor games etc..you need to be involved yourself.

It happens with many kids at this age as they watch television and also these days mobiles and see so much if all this that want to imitate all that.. scolding in this case is not the solution..one has to lovingly sit with the child and talk about how there is an age to do all this and how using cosmetics at small age is harmful...try to find what other hobbies the child is interested in.and make divert towards that..also limit the screen time.. slowly slowly reduce it..reward her for doing good things..

Try to engage her in other productive activities. Encourage outdoor play, painting , dancing etc... Gradually she is forget all this. Then sit with het fir studies and make it fun...