Terrible parent

So its half 2 in the morning my daughter has finally given in. I feel awful.

My patience is so short with her I lose my cool I shout and I get frustrated to the point I could just walk out. She is so different to my son.

She woke for a wee and then cried her pyjamas were wet (sweaty) so I got her more she's then throwing a tantrum and I'm trying and she's kicking off.

My husband is unsupportive all I got was flicked the bird as he went to deal with her. Im 21 weeks pregnant with #3 and just feel like I don't deserve to be a mum. I don't know what's come over me I feel like my light has gone off. I struggle to enjoy my daughter because she's so much naughtier and does things on purpose unlike my son. He never really liked to be in trouble she doesn't care about anything. If you naughty step, hands on the wall, shout, snack on the bum(she stuck a fork in plug and opened oven door) she laughs. Honestly. I'm stuck.

I am here now wide awake crying as I feel its all my fault...