Mahzabeen, I don't know the details of your situation, so it is hard to advise you. I do know that being with children all day long is quite difficult, and it would be normal to feel annoyed at some points during the day. Can you get some advice from a trusted relative or teacher who has experience in guiding children? Could you see a therapist or get support from a group for parents? Even online support groups can help. I also recall that the book "How to Talk So Kids Will Listen and Listen So Kids Will Talk" was very helpful to me. Good luck!