Roaches in a dream indicates filth and dirt. Your dream represents undesirable aspect of your life that you have constantly ignored. Now the situation has gotten worst as seen overrun by roaches.
Some believe that roaches in your dream symbolizes fear, intrusion, invasion, and a lack of personal power as well as other influences including illness or burdens. They also may represent unfulfilled desires for security, for provided protection from violence or accidents.
Think about what the issues that have been bugging you and confront them.