Hello Every Body
> Hello, everybody!

Hi, my name is Mohamed ,
> Hi, my name is Mohamed.

im from Egypt and i wanna learn English bcos i will use it in my work and travel.
> I'm from Egypt and I want to learn English because I will use it in my work and travel.

If your notebook entry is for only spoken English or SMS text messaging, then what you had is entirely correct.

If you want to keep your notebook with proper spelling and a bit more formal level of English, then the above corrections should apply.

Perhaps at the beginning of each notebook entry you can say which kind of fluency you want: spoken or written.

^ ^

Hello Everybody

Hi, my name is Mohamed , im from Egypt and i wanna learn English bcos i will use it in my work and travel.

Hello Every Body

Hi, my name is Mohamed , I'm from Egypt and I want to learn English because I will use it in my work and travel.