You can ask your boss that is she not liking your work or what are the errors you are  committing and try to improve them you can also work overtime in order to improve and also impress her. You should also try to pay more attention in the office meetings because this will help you to understand the process and ways of the work done, try to be more punctual completing any work and also reach office on time, this will definitely help you to improve your personality. The other important thing is to dress up properly in very classic and decent way and be honest or loyal towards you work; if she will see the dedication with your work this will really create good impression of you. 

You can ask your boss that is she not liking your work or what are the errors you are  committing and try to improve them you can also work overtime in order to improve and also impress her. You should also try to pay more attention in the office meetings because this will help you to understand the process and ways of the work done, try to be more punctual completing any work and also reach office on time, this will definitely help you to improve your personality. The other important thing is to dress up properly in very classic and decent way and be honest or loyal towards you work; if she will see the dedication with your work this will really create good impression of you.