DD16 is hard work at the moment, DH and I are both struggling with her behaviour. It's typical teen behaviour from what I have read i.e. spends lots of time in her room, lots of time on social media, flipping at the slightest thing, questioning everything and just generally pushing back (with DH especially). It's manageable most of the time, she generally does as she's asked, comes back on time when out with friends. I can chat with her as long as I choose my time wisely. Consequences for bad behaviour are things like not getting her spends or removing her tech for a set period (It's difficult as a lot of stuff set by school is only accessible online/through an app).
Last week she didn't get her spends as she had a few blow ups I.e. screaming/crying tantrums, being disrespectful/taunting DH and bullying DS12 and also not doing jobs expected of her (emptying dishwasher one weekend day and tidying her room). Today i found £10 missing from my bedside drawer, we've previously had 2x £10 go missing but as we couldn't prove who did it we had a stern convo with both DCs about the missing money, gave opportunity to own up, discussed it being wrong to steal etc. Today I know for a fact it was DD who took the money, she was the only one in the house, I checked and the money was there when I left for work and found it was gone shortly after she went out to meet her friends, no-one else had been in the house in that time.
I confronted her about it when she got home and she denied it completely and seems gobsmacked that I don't believe her. I have taken laptop/tablet for a set time as punishment and 2 weeks spends to replace the amount stolen. Tried to have a conversation about trust etc but she is still proclaiming her innocence. Not sure where to go next, obviously all money will be locked away from this point to remove the temptation. I just can't believe she is still denying in the face of the evidence.