A room with the exact same width and depth is a hard room to start with. Sometimes you just have to work with what you have though. You’re going to want to spend the money and work on room treatments. Contact Vicoustic for help.
https://www.vicoustic.com/page/project-request
https://www.acousticfields.com/acoustic-treatment-for-a-square-room-recommend/
https://www.vicoustic.com/page/project-request
https://www.acousticfields.com/acoustic-treatment-for-a-square-room-recommend/