Toddler tantrums

I’m not going to lie I’m finding this stage of being a mum really really hard. My little girl is 3 in December but the tantrums are at an all time high and I feel like all I’m doing is trying to stop the next meltdown. She’s whining about anything and everything, hitting, screaming and shouting. Please tell me this is normal because in the moment I think is this normal? I pick her up from nursery where she’s been good as gold and the moment we get home it’s like I’m constantly battling with her. She doesn’t nap during the day and isn’t a good sleeper either so I know she’s tired a lot of the time but it’s just so difficult. How some mums can be so calm is beyond me, I’m finding it really hard not to lose patience with her when she’s constantly shouting at me, refusing to do anything, things like changing nappy, getting dressed, brushing her teeth or hair 🫠 somebody please just humour me and tell me it’s totally normal and it’s a phase that will pass?!