At 11 you have to change tact. I had actually guessed it might be that kind of age from your post which is why I asked.
You cannot expect what works on young kids to work on tweens.
Give her more control and choice. Involve her in the rules. At that age my kids wrote their own homework and chore rotas, which made it much easier. E.g. "you said you wanted to get all your work done by thursdays so you have weekends free" rather than "do your chores because I say" IYKWIM.
Involving that age in decisions and even in what the house rules should be works wonders! Good luck
Recommendations please, for a stopover on the way to Loch Tay
Have any of you got all electric cars? Pros and cons please.