1)Eat well, take vitamins and exercise - Keeping your body healthy will increase your stamina and bolster your immune system.
2)Set appropriate boundaries with your children - Its healthy for children to know that you sometimes need private, quiet time. For instance, after the children go to be make your bedroom off limits until morning.
3)Seek support - Talking to a neutral third party is a good way of working through any unresolved feelings that may still be eating at you. Seek out supportive friends where you can talk about your feelings.
4)Journal your feelings - Writing your emotions down is a good way to let them out. Sarah Ban Breathnach has a wonderful idea of gratitude journals. You write 5 things each day that you are grateful for. A wonderful way to focus on what you have rather than what you don't have.
5)Get respite care - We all need breaks from the kids and work. Make it a priority to have dates with yourself, doing what you like to do. Think of taking time for yourself as recharging your batteries.