The best way to improve reading and writing is to read easy novels… and read them everyday. How easy? Well, you should not need a dictionary to understand and you should be able to read quickly. On most pages, you should understand 98% of the words.
You can start with kids novels– books for children ages 7-12. Then find adolescent novels (for ages 13-15). After you read a lot of those, read novels for teenagers (16-18 years old)… and finally, novels for adults. What kind of novels? Anything you like. Mystery, romance, adventure, etc…. Read things you like. Read easy novels. Read a lot and read everyday. Don’t use a dictionary– read quickly and enjoy your reading. This is the best way to improve both reading and writing.