I have taught every age group at various points, and last year was mentor to secondary NQT.
Some amazing advice here, the books mentioned are great.
My main advice to new female teachers is to be a bitch. Completely shut off emotionally and be the boss (act this, I know it’s impossible to shut off emotionally). Like others have said, kids can smell it when you want to be liked. I used to pretend I was a boss in a weird company. Sometimes they’d salute me like a drill sergeant 
This is controversial but am against any sanction that causes you more stress like phoning home- this is from previous experience where the school didn’t have a behaviour policy so it was the only thing we could do. We’d end up phoning 20+ patents a night, it was awful. The school should have a policy that supports you, if it doesn’t mention this to your mentor/HT.
Don’t beat yourself up or think you’re failing because of their behaviour, yes it is your job to try and control them but honestly, especially at the moment, a lot is out of your control. In time you will get more confident, learn to shut off more and learn which behaviour needs which sanction according to each pupils needs (not an easy task).
I’ve always thought women have a harder job at behaviour. Voice in particular needs work- we are conditioned socially to artificially raise our voices which can become very grating over long periods. Lower your voice and own the room by walking around and showing you’re in charge and confident.
Also something I’ve noticed from lesson observations- try to keep your own talking to A minimum, whether that’s pupils reading their own instructions, they read out stuff from the board etc. It really helps. You’ll feel less knackered too.
I think this advice was on one of the books but I loved it- assume a facial expression as if you’ve just noticed it’s raining outside ie disappointed. If behaviour improves in the future you can relax this but this should be default. Smile only with control (took me ages to master this!).
Also consistency and stamina- another thing you only learn with time but it really is crucial, and I think the hardest part of behaviour management. As soon as you’ve stated a rule and then go back on it you’ll lose them. Try not to make a rod for your own back by issuing crazy threats under pressure (everyone does this!).
Oh and everyone shouts sometimes. I hate doing it only because it tires me but honestly I’ve seen some kids blasted by staff and it’s the only thing they respond to. Don’t feel bad about it. Just try not to do it in an observation as it gives out a sense of lost control.
The more I see of teaching the more I believe that the only real difference between a good teacher and a crap one is if you care or not. You obviously do. This is a very tricky time to be a teacher, be kind to yourself.