For new computer users, you can learn where the letters are here.
Practise using the mouse here and here.
Choose from grammar, spelling, reading, writing and listening here.
Try personal pronouns, present simple, or making sentences.
After that you can try some adjectives to describe things.
If you want to learn about commas (,), look here.
Don't forget - check here in the summer for more websites to try.
Enjoy your practice!