British Campaign - Indian Blood

I know there was already a guide for this but I'm still struggling. Cornwallis and company got weak so I had to pull them out. Meanwhile to prepare for Dearborn, I equipped every town with a militia. I sent two artillery forces to push through the centre with Clinton. I captured the first Native American town and after that my artillery moved toward Washington. The city was recaptured by Native Americans, Dearborn caused havoc, and my troops were going hungry. I think I need a different strategy. My generals are Kate, Sophia, Maria, Isabela, Sakurako, and Dumouriez. If it helps, I like to keep Sophia and Isabela together, so they back each other up. Any help is appreciated!