Hi Sal
I'm sorry you find yourself in this position. Unfortunately, there is little I can say to ease your stress. The longest reviews have taken up to 18 months to process. I hope that's not going to happen to you, but six months is not unusual. You can always ring the DWP and ask them about the current status of your claim and you will be given an update. Less than 20% of decisions are paper-based.
BIS
Nothing on this board constitutes legal advice - always consult a professional about specific problems