It's important to speak with an attorney in your residing state for guidance relevant to the specific laws and process.  Some states require a separation period and/or couples therapy before the process can be completed.  You may also proceed differently depending if your state is a Community Property or Equitable Distribution state.  DMK has put together a general process of events, types of divorce and legal guide to provide you an idea of what to expect during the process.

Social media, email and text messages can be used in your divorce case.  Think before you send, post or update anything.  Even the smallest inference could be used as evidence.