I can't write well Can I practice writing?

No one is born to write well, but they are all practiced later, even if you are not writing well now. As long as you have patience, you will get better. You can buy some copybooks to practice first, or download some apps to learn slowly. I have several here, such as writing school, Mr. Writing, Mo Chi and so on. However, personally, if you study, you might as well write.