I am a SAHM and will be sending my daughter to a half day programme at Mindchamps soon. Is there anything I could do to prepare her for school, especially to ease her separation anxiety?

Tall to her, keep talking to her be it whether she understands or not. Also maybe show her books and watch school cartoons with her. Most of the time, kids adjust faster then we expect them too. Lastly, mummy if you freak out, she will know. So, time. For you to soldier up for the benefit of your girl.