dinhduong6064
It sounds like the soil mix is well-drained and you haven't owned it long enough to over water it
Perhaps the plant is stressed because of the move to conditions which are different than where it previously lived. Or perhaps the humidity levels are too low in your home. Can you set the plant on a tray of pebbles and water to create a humid mini-zone for the plant?
I am sure that others will chime in soon with more suggestions.