Thank you for writing.
From the information you have supplied, it seems that the possession order date has passed. Presumably the landlady would be pursuing a court warrant for possession. This happens when the tenant does not leave by the date stated in the possession order. This gives landlord the right to apply for 'court warrant for possession'. What happens next is that you get a notice of eviction sent to you by the bailiffs saying when the eviction will take place.
If your landlord uses the accelerated possession procedure to evict you, this only means you have to leave the property, it doesn't mean you have to pay back the rent arrears you owe. However, your landlord might apply for a separate court order which forces you to pay back what you owe. This court order is called a money judgment.
If your landlord uses the standard possession procedure they are likely to ask the court to give them a possession order on your home as well as a money judgment. It means you will have to pay the landlord back the money you owe them, even if you've left the property.
At this stage, your option is that since a court does have the power to delay the eviction, but only for a maximum of six weeks (42 days). You would have to prove that leaving by the date on the possession order would cause you exceptional hardship. It's up to the court to decide whether to allow you extra time before you have to leave. This can be decided with or without a court hearing, depending on how your landlord filled out their original application to the court (claim form) to have you evicted.
My advice is, get in touch with court asap and tell them about your difficult circumstances to get a postponement for eviction date.
Also consider consulting an experienced adviser, for example, at a Citizens Advice Bureau.