So whiny and scream-y

Ria

My 15 month old is SO WHINY and cries ALLLLLL the time. She screams frequently too. When she used to fall, she would get right back up and it didn't phase her. Now she has a temper tantrum every time she falls (which usually she's perfectly fine). She screams and cries whenever she doesn't get exactly what she wants and I don't know how to handle this Every time, I try to help to use her words & signs, but she's still struggling with that (even though we've been doing it for months).

Any advice or books I should read? It's driving me crazy and of course it doesn't help that I'm pregnant and very very sick. 😓