17 yr old

Should we ask our 17yr old daughter to do the TSG course with us meaning more like an adult role? We are new to the program. We are a blended family with a 17yr old from my wife’s first marriage, and two toddlers. We have been married 5 years.
I adopted the 17 yr old, however things are not the same since the first baby was born. I think she was jealous of the baby taking the family focus. Then it seemed to become a power struggle over discipline and management of the behavior of the toddlers.
Should she do the course as a parent role type person, or just maybe learn the program as we apply it? There are times when she does watch the toddlers. She is very enrolled in a military youth organization where she has a leadership role. She is a natural at telling others what to do. Also, she is very busy with school and has big goals academically, but frequently falls behind, and then has to push hard to catch up. If it wasn’t for the constant pushing of her mother, she probably wouldn’t catch up. She would have failed previous semesters. She gives a lot of attitude yet at the same time she seems to want to be good. I suspect that she will resist the time investment needed to learn the program.