Terrible Two symptoms kicking in

Cepheus is showing every symptoms of the Terrible Two behavior, which includes hitting, stomping, crying, screaming and throwing themselves around.  This is a stage that every toddler will have to go through and normally between the age of 1-3 years old.  Cepheus have been especially cranky these days and for no reason will start to scream and cry and throw himself rolling onto the floor.. he always wants to get what he want and he always wants to be carried around in the house.  He will stick and cry for his daddy when he did that.. and previously cry for me.. but as i am on confinement and i refuse to carry him now.. he start to divert his target and throw tantrums on my MIL instead.  

Maybe its time we start to take him in hand and start to setup disciplinary rules at home.  Considering Time Out may be a good option to start with..but we must persevere when we do that.. and not associate time out with crying fiercely.. which is quite an impossible task to do when my MIL is around.. as she always will give in to him when he start crying.. like what happen just now.. i keep telling her not to give in to him but she wouldnt listen.. sometimes it really is a headache when it comes to disciplining of children when there is elderly at home as their thinking and method is so passe and different from ours..