How to sound proof my room so parents don't hear me?

A mouse click is not loud enough parents won't hear that buy your friends some headphones

These are all possible suggestions, but short of spending alot of dough and having an unsightly looking room that your family may not approve of, you could just get an external mouse that has a lighter or silent click pattern. They are out there, and I use external mice with all my laptops. Too many years of gaming with a regular one to even attempt an onboard clicky touchpad.

Go on to a site and type in sound proofing. Good luck

Go B&Q explained your problem and they will help you. A cheep way to do so is news papers and cupboards and of cause because it won't look good good like that. You van also covet the whole wall with memory foam or foam.