Romeo and Juliet Act 4, Scene 3 Questions

How does Juliet deceive Lady Capulet and the Nurse at the beginning of the scene? she says that she has to pray (and be alone) and the Nurse should help her stressed mom
Why does Juliet deceive the Nurse and Lady Capulet? so she can be alone to drink the potion
What fears does Juliet tall about in her soliloquy? End The potion won’t work, it’s poison, she will have to wait for Romeo, she will suffocate, she will go crazy and beat herself with someone’s bone
What does Juliet do at the end of the end of the scene? Drinks the potion
Why does Juliet drink the potion? to avoid the marriage with Paris, and for Romeo