I just started working with a new trainer in a group training environment. I've multiple muscle imbalances myself and need to work on this very thing. My goal is to get more "durable" - less prone to injury because of the assorted imbalances - by taking care of the imbalances as far as possible. These imbalances didn't cause my older overuse injuries, but they certainly make it easier to "tweak" them. I can't give any constructive advice right now as I am just starting this process, but I can give you moral support.
You can do it, and so can IWe can cheer each other on to our respective goals!