Linksammlung Englisch für euch
On this web page you will find manifold information and help in order to better your English! Give it a try and check it from time to time.
At the left-hand side, there are also links to intermediate as well as advanced levels – all three are adequate for you!
This homepage collects a lot of material, all in English. Very good explanations and examples.
Here you can find a lot of texts and exercises on grammar. You may want to use the search function in order to find quickly what you’re looking for.
If you want to get better at typing AND boost your English, you should try this typing game: