Zencat said: Biglii!
How long have you had it? Can we see a picture of the container and does it have drainage holes? What kind of light and water does it get?
WillC said:Your plant requires maximum indoor light right in front of and close to a sunny window if it is to survive indoors. Although it does not like dry soil, yours is in a fairly large pot and it is not growing vigorously, so it will need to dry at least 2 inches deep into the pot before needing any water.
I do not see a healthy new growing tip and that is concerning. The already damaged leaves will not recover. If you don't see some healthy new growth in the next month or so, then the plant will probably never recover.
WillC said:Outside in light shade might be beneficial.