sleepless night 1

I have been suffering from insomnia for long. Many people said that I find difficult to feel asleep as I have too much concern in my mind. Looking back, I am really nervous. I used to write eloquent english as I majored in Literature in English,I but now, I have changed my major to Sciences. I fear that my proficiency in language become poor. I worry that I cannot pass the science courses with A grades in this semaster. I have no more chance to score high marks, I need a university transfer. Please, push me be more motivated, please, let me change my major back to language ,or social science will also acceptable. I just don't want sciences anymore.