Hibeestu its not stupid question thats what we here for to help you with questions like this so welcome you come to the right place,  yes you can used your dongle as internet source, you wouldnt need to worry about your current router as you wouldnt be using it, you just be using your dongle, just make sure you set up other user name on your computer and make sure all cookie are deleted then you have no problem what so ever just buy the stealth guide it tell you everything you need to know  | 
