I think pps have covered most of what I thought
At 9 months they go through a developmental leap and they whinge and cry for no reason. It's a pain but leaving them wont hurt them. Have you got a jumperoo or door jumper you can put Baby in while you do things?
Also there is an app called wonder weeks which explains developmental leaps. It may help you to understand and recognise why and when these behaviours happen. It's a horrible cry they have too but honestly you will recognise the difference between la "I'm in pain need something" cry and a " I just want to be a pain in the arse" cry
This is my 2nd time round and it has been harder without the baby groups or regular meet ups with other mums. Do you have any other mums you can make a WhatsApp group with that you can ask questions or generally rant to? Even though I am on my 2nd I have forgotten loads of things and the other mums just help to remind me or put stuff into perspective or come up with solutions I hadnt thought of.
If baby is getting really whiney put them in the pushchair and go for a walk. Even if its raining. The change of scene and fresh air can really help
And now your partner.... honestly I think some men think it's the 1950s. My dh works 7-4 and cause of lockdown he is at home. He makes me tea in the morning, will sort the toddler out and sometimes help me get one of them dressed. During the day he pops out of his office and makes me tea or comes to my rescue If i need help. When he finishes he makes dinner and helps look after the children and does bedtime with us
If he was in the office he would do the morning tea, help where he could and then when back home make dinner etc
If he moans that something is untidy I tell him what he can do.... he either sorts it himself or shuts up cause I do what I can.
Now the youngest is a bit more mobile and the older is in nursery more I have got more time for doing things which helps but there have been days where i sat on the sofa with a sleeping baby and watched alot of telly.
Dont under estimate the mental load having a child puts on you and you need a partner that helps to lighten that load not add to it. He either needs to help you or put up and shut up.
Also he needs to be a father. He help create that baby so he can help to raise it to.