u know i have a 3 yr old son who is nearly 4 in 2 months and he is the same but he has behavioural issues but most time he just plays on it too.. iykwim..
he is up my butt to put it nicely lol.. he does everything ur dd seems to be doing he chucks a tantrrum at the littlest "no"..
but to teach him that he isnt going to get everything he wants i tell him im not listening and if he deosnt be nice and behave he wont get anything..
sometimes u have to be hard to be kind cause they do tend to take advantage..
as for the baby i let my ds help me with everything n she isnt here yet.. he helped me set up the room put her clothes away etc..
i also let him know that she isnt a toy n u have to be gentle n speak softly cause otherwise it upsets babies luckily we have a 3 neices n 1 nephew all under 6 months right now lol so its good practise..
once the bub is around involve her in as many ways as u can n its never easy GL hun i hope u can sort it all out n relax