Over the last few weeks/months my two kids (4 yr old DD & 2 yr old DS) have gone from being normal kids with good days/bad days to being just downright little terrors and I'm just at a loss as what to do. I'm at the point where I'm yelling, screaming, crying and have lost all patience. I am feeling so horrible about it but I have pretty much given up, thrown my hands up and not enjoying being a mum anymore at all and seriously doubting my ability to be their mum. Maybe I need to go back to work full time and DH being the stay at home dad with this bub (I'm 31 weeks pg).

They:
- do not listen of any description AT ALL
- scream/yell/squeal all day long and I can't get them to stop/quiet down
- I can't get them to do anything, even the simpliest thing like stop jumping on the couch
- the biting, hitting, kicking, wrestling, fighting is out of control
- physically trashing the house
- destroying their toys
- help with tidying up their toys
- any attempt at discipline, both gentle or timeout, is met with either backchat or laughing in my face

I've tried:
- time out
- routines
- gentle parenting
- reward chart
- naughty chart so no reward
- special activites for being good
- counting to 3
- having a special time with each of them, together and seperately
- taking their toys away
- minimum one day a week where they get to choose everything we do and I do no housework/chores etc
- limiting tv to a tiny bit each day (max 2 hours spread over the day)
- doing activites with them
- praise & encouraging any and all good behaviour
- they get my attention as much as I physically possibly can
- being as consistent as I can

I'm just at my wits end and I don't know what to do anymore . This is going on all day every day. I've turned into the horrible parent I never ever wanted to be. Even when I'm doing exactly what they want they are still fighting/yelling/screaming/whinging so I feel like I can't win regardless.

So please, please help me. What has happened to my kids and where can I go from here??? I want to enjoy my kids and I'm just not adn I'm terrified that they are going to grow up thinking that mum does nothing but yell and scream at us . This is absolutely gutting me.

Thanks,
Dan.

PS. on a side not how can I stop my DS from picking his nose constantly (and yes I mean constantly - he even sleeps with his finger in his nose)