Hi, I just got this plant 2 weeks ago, the first picture was taken 2 weeks ago. The last few days it started dying, I'm not sure what am I doing wrong? I've been watering it once a week. the last time was 2 days ago, and the rest of the pictures was taken few minutes ago. Please help identify what kind of plant is this, and if you have any advise on how to save it. Thanks, Hazem.