@Mrsmummy90 - sorry you are having such a stressful time with toddler tantrums. Can I share a few things we did that might help? (Not sure what advice you read but this advice worked for us, like a dream.)
- Pre-empt them. Try to avoid them happening. Toddlers tantrum when they are tired, hungry or frightened that they are losing control in their world.
Make sure she has regular snacks and always give her a choice and as much control as you can muster. (You know the old 'would you like bread sticks, apple, or rice cakes etc - so you are actually controlling what she has by limiting the selection to things you approve of, but giving her an appearance of control and choice.)
- Always listen and always agree with her, without changing your decisions. This is magic. If she screams: I don't want to go in the car! and you have to get to a clinic appointment for the baby, you say: You don;t do you? You really are upset that we have to go in the car. I don;t want to either. It would be much more fun to stay home. If we could stay home what would you want to do?
Let her tell you. Then say, 'That sounds much more fun. Sadly, we do have to go in the car even though we don't want to because the clinic has to see the baby right now. But let's make it fun. You can choose some music and we can look out for purple lorries. Then when we get home we will (mention the thing she said she'd rather do)
Etc. It's a combination of deflection, suggestion but most importantly recognition that she is upset. If she feels heard, even at that age, the tantrum should lessen. It won't work miracles but it might well reduce them.
And do all the usual new baby and toddler tricks of saying stuff like we can have a biscuit when we get home. Baby can;t. He't just a baby, But you are a big girl, so you can have one. We can watch Peppa (or whatever) when we get home. Baby's too young. He can't understand but we can, can't we? Make it really obvious to her that she;s still on your radar and the baby hasn't caused her to lose her job as The Most Important Person In Your Universe.