If divorce, legal separation, or annulment is inevitable ... the best advice is to "get it filed, and get it over with" (with apologies to Winston Churchill for whom ending a sentence with a preposition was something up with which he would not put).
This form will get your case filed in the shortest amount of time. When you fill in all the appropriate information and click Submit, your initial paperwork (Petition, Summons, Case Assignment Form, etc.) will be prepared and ready for your signatures tomorrow. Just let us know whether to mail them or email them or whether you'll be dropping by to sign.
If you're not ready to submit all this info just yet, just fill out the top portion and Submit.