Sounds like quite a circus at your house. I don't blame you for wanting a break. I wanted one too and I only have one wayward child.

Perhaps instead of holding the three year old on your lap you can have him sit in a chair for time out. My son has ADHD and I used time out until he became a teenager and then started withdrawing privileges. A child should be in time out for one minute for every year of age, so three minutes for him right now. My son's doctor told me not to physically restrain my son because with his ADHD I risked that he would injure me unintentionally. I had to stay with my son the whole time he was in time out and keep reminding him to stay in the chair. At times he would be upside down in the chair with his feet hanging over the back of the chair but hey ADHD kids are lively that way.

Is there anybody you trust to take care of your children for a day or even a few hours so you can get a break? Do you have any family nearby that can handle them?