Ok, you don't fit into any of the above categories and you're still considering doing it yourself. Don't be fooled into thinking you simply fill out a few forms, and you're divorced. Doing it yourself is going to be time consuming. In fact it will probably become an all-consuming part of your life. Unfortunately, much of the things that will need to be done within the court system are during regular business hours.
Research is time consuming and laws are often hard to understand or ambiguous.
Remember that any settlement will have to fall within the law. By nature, divorce is emotional. Anger, guilt and blaming are common emotional issues you will have to deal with. If there were no conflict between you and your spouse you likely wouldn't be getting divorced. Even if one person perceives themselves as at a disadvantaged there will be problems.