leave the baby in house and you go to see a movie, or broadway show!! Do something you usually don't do, you will feel much better. --suggestion from professional counselor
Bring the baby out for some fun. Gymboree or little Gym. Search online to see if there is any shelter around your area. You can even call the police for more infomation. Of course, be very careful about why you need this. If you still want to continue the marriage, just blame your parents-in-law. Again, this is to give you buffer and prepare for the future. Another perfect example of how the husband and the husband's parents abuse the wife. Nowadays, JP Chinese man are everywhere.