Remember to acknowledge your reactions. It is normal to fear the unknown and question what you will do and how you will manage if worse comes to worst. Be true to yourself regarding your feelings, this will help you to cope with them.
Ignore the rumours floating around. Many people will worry about something that could happen and then worry again when it does happen. It is much more effective to disengage from rumours that are going around and only deal with the reality of the situation when it presents itself.
Try to remember that work is not your entire life. Work is what you do, not who you are. Your roles as a parent, spouse, friend and family member are just as important. Try to remain connected as much as possible to your other roles and not let the uncertainty at work consume you. Staying active can help; go for walks, hikes or a swim. This can help you burn off nervous energy as well.
Try to remain positive and remember how you have overcome struggles in the past. Remind yourself that up to this point you have overcome the curve balls that life has thrown you and if you do lose your job, you will overcome that obstacle as well.
Self care is also very important. Make sure that you are getting an adequate amount of sleep and exercise. Ensure that you eat well and keep the commitments outside of work that you have. Develop a relaxation routine and know that whatever comes your way, you will move past it onto brighter times.