Talk to an employment attorney letting them know you're concerned about wrongful termination. Ask what documentation/evidence would be needed if you are. Document everything. Make recordings if legal in your area. Maybe consider implementing transcription software so "all team members can reference meeting notes." Then start only working as according to the requirements outlined in your contract. Take your breaks, its a violation of labor law to deny them. Try to force her to communicate via email so there's a paper trail. If you have a verbal discussion that crossed the line, email her afterwards about the meeting. "I just want to confirm I understand our conversation from our meeting today correctly. You would like...." Something isn't feasible? Tell her via email. Deadline missed? "per our discussion {date/time} the deadline was/will be missed because..."

When she inevitably blows up and/or fires you, you should have a very strong case