Dear Fatima,
If you are worried about handwriting, you can improve it. If a person is not satisfied with anything, he wants to change it at any cost. Therefore you have taken the first step that you are willing to improve your handwriting. In Urdu we say "Niyat saaf, manzil asaan". Now there are many things to improve the handwriting for example:
•    Try to write down the answer of the questions of any subject at least twice. It will be a good exercise to learn and to improve the handwriting.
•    Use many writing tools like pencil, chalk, crayon, pointer, colour marker to write.
•    Try to write in relax hour NOT in hurry.