I haven’t had time to read all the replies so if I cross over what someone else has said I apologise. I was an educator for a long time, and a parent, and I’ve watched Dr Phil! LOL
Some comments and they are general and not intended towards you as such.
I often hear parents talking about creating rules but I often see parents allowing transgressions of those rules. The child then learns that rules aren’t really rules they are power games and so on.
When you create a rule there should be clear consequences about what will happen when those rules are broken. Whining, crying and tantrums won’t budge you from applying the consequence. At the same time it’s important for a parent to sometimes say “I got that wrong” or “I went too far with that rule” or whatever.
Most parents get difficult periods with their teen.
I would remove the mobile unless she is earning the money to pay for i OR she ‘earns’ the right to have the mobile. If she gets it back and she transgresses a rule about the mobile the account is cut off again.
I may not totally remove the computer time because some…maybe not much…but some…homework etc may be achieved by looking things up BUT I would bring it out into the family living area and chain it if necessary so it can’t be moved.
No, I would not pull her bed out of her room; that’s dehumanising. If you think boot camp is the answer send her to boot camp proper.
I would be wary about the soccer issues and removing them from her.
You are in pain and very hurt and you need to separate (and I mean this in the nicest way hug) discipline tactics that are established to bring about improved behaviour and vengeance.
I would remove some things now, make it clear why they have been removed, how you feel and what expectations you have for her behaviour and demeanour towards you. Let her know that you do expect her to be angry now and resentful (because she will be - so, don’t deny her that ‘understanding’) but that if you find she has tried to work around your rules e.g. getting someone else to establish a mobile account for her and so on, you WILL remove the soccer. But make that one soccer issue first and not the whole lot.
I am sure if you look back at her childhood you know that when you created rules YOU gave her the impression that if she waited it out no punishment really occurred. I think parents can admit that to their teens but add to that…it’s time this pattern stopped and it’s stopping NOW because I think you’re a golden girl and a winner and yet I’m not seeing it and I want to. You are bound to be angry right now but you don’t respect me and I want you to and so we are starting again and THIS time you only get things returned and you ONLY get treats etc when you’ve proven yourself worthy and you shown respect to be me AND yourself.
Point out to her that bad mouthing girls don’t respect themselves; at best they are cloning street gang types and street gang types don’t get appointed captains of teams. Try and talk when you can be calm and if she shouts walk away. Don’t yell back over your shoulder or anything. Walk away. It will be hard but don’t give her YOUR usual responses.
These issues are about management and response. You need to probably correct your management and mean what you say and stick to it. Be reasonable not unreasonable. Don’t go from liberal to jail like - I doubt that’s natural anyway
Pose reasonable expectations for behaviour and verbal responses and demand (not verbally but by way of your own adherence to what you establish) positive responses.