Hi Alia,
Here is what I would write:
Hi, (Start your greeting with a capital letter and end the line with a comma.)
I am Alia, (Your name is a proper noun, like England or Paris and should always be spelt with a capital letter.) I (The word 'I' is always spelt with a capital letter.) try to read many times (or 'I try to read often) but I do not understand. I am not a clever student. (Never say that. You found this site and everyone has understood your emails.) Please help me. (Nicer than what you wrote.
![Smile [:)]](/emoticons/emotion-1.gif)
)
Alia. (Remember always write your name with a capital 'A'.)