Check my writing please.

My name is Natchaya. My last name is Sakdee. Everyone at college and my family call me Cha-om, my nickname. But usually only teachers call me Miss Natchaya. I am 22 years old. And I am from the south part of Thailand, Phatthalung. My native language is Thai. I am a forth year student at Chadrakasem Rajabhat University. My major is English. So I help my parents by working as a part-time job at a department store.My work starts from 11:00 until 8:00 p.m. every Saturday and sunday. I don't have enough time to rest because I have to do my home work and prepare my study for the next day. I feel tired but I have to work. I save money for my study. And I can have extra money to spend on new books, which I want.