M.W.
Hi Aisha,
It is just a phase and it could last a while, so buckle your seat belt! I had this exact same problem with my now 4 yr old son. He would scream and cry for up to 2 hrs! He gets his stubbornness from two lines of stubborn. Lol. I tried the Ferber method, the sitting next to his bed method, the patting him in his bed method... none seemed to work. It was very frustrating, but it soon passed. Just continue to reassure her that you are there for her, but don't pick her up. If you pick her up, you will only increase her frustration and it tells her that if she cries enough, she will get her way. Hang in there! You're doing an awesome job!