What is deference between I'm vs I am Please help me

This website is better then Facebook I'm using this website some 4 or 5 days I have great experience Im very happy I learn some new world with this website and make some new friends. There are many people who help to learn English and some give correction to students I want to tell them thank you so much and God bless you all. I spent my 1 hour or some more time with this website . Read notes that come from world . This website give freedom to write people write their good or bad experiences which with them .thank for reading and give me my correction please.....

Today give my exam!!!! In this exam I make some new friends and today is my first subject exam and there is 7 subjects & now 6 subjects are remanding I wish I pass in all subjects . My day exam experience is very nice & a girl is seats next to me she is very cute and she is well behavior I talk with that girl . I Asked him for his name she's name is Ridhi .when exam has started she copied my hole answer sheet . Please give me my correction. Thank you for reading......

Hello Tomorrow is my exam Fucking exam is tomorrow man!! I hate this exam. Tomorrow is my final exams and in my school government established cctv cameras, police & special forces this is very hard for us students never cheat. Pleases give me my correction & thank you for reading.....

Tomorrow is my final exam.. Exam is an burden for me You imagine in this world exam is not existing then all students party all time . in India this exam is very important for us .

Ohh my god in two days my final exam has started Im not prepared for a final exam my mom and dad force me to pass this exam ohhh man I don't know what I do help me. Thank for reading this message. Please give me my mistake

Ohhh hell My Final exam is coming After two days my exam has started and I'm not prepared. I reading books 10 hours per day I'm tired i think when this exam has complet I take big holiday with my friends.thank for reading this message

Ohh hell im not Abel to write english Hey guys I'm Ruchir I want to learn English but I don't have money to pay a teachers fee so I'm writing a message so guys please check my message and show me my mistake now I'm telling you my story I'm 17 years old and I'm studying in high school in my family there is my mom sister and my dad my sister is Merid and she is now USA and my after 6 months my mom also going to USA for job when my got a green card then she file me them I'm also going to USA so that why I want to learn English.thank you for reading my terrible messages and please tell me me my mistake...[emoji]