V.C.
It may be time to institute a time-out chair or corner so she learns there are consequences for her acting out. Usually kids should spend one minute on the chair for each year of age, so 2 minutes.
Try and ignore the tantrums if possible too, and redirect her to another activity. She is testing your reactions, so you can't show that she is getting to you. I know it's tough, but stay calm at all costs. This is a stage that will pass.
BTW, we named our daughter Malena. Another Malena C!