Absolutely. Prior to leaving your spouse, you will want to gather as much paperwork as possible, including copies of your spouses most recent pay stubs and past 3 W-2s. This is especially true where your spouse is self-employed. A lot of information can be obtained through discovery, but it is easier and more reliable to gather this information yourself as a spouse may not comply with discovery requirements.
Change all your passwords and pins (computer, ATM cards, credit cards, ebay, amazon, etc…basically if there is a password or pin, change it!) and keep the new passwords in a safe and secure place. Do not use passwords that your spouse can figure out like your childs middle name or even your childhood cat. You need to secure non-joint bank accounts by ensuring that only you have access to the accounts funds. Lastly, you need to get off social media. It is time to shut down that Facebook account. Even if your spouse does not have access to your page, someone sympathetic to your spouse may. An attorney can provide you with additional information.