Blue Screen, Repeated Rebooting!

Hello,
To be honest, I know you'll probably all laugh at me for not getting help earlier. Perhaps I'll try to draw pity on myself for telling you my story. I'm a 14 year old, with an older brother who's practically a whiz at computers. However, when he's found out that I've tampered with, and probably broken, a computer, he'll go hay-wire. Just a couple days ago, I think I might've found a virus. Just one of those fake anti-virus ones. I thought I could just delete it and get on with it. Apparently not. It started giving my icons on my desktop of pornography and spamming my face with fake reports of my "viruses". So I started my constant cycle for about half a day of attempting to find the "antivirus" in my control panel and uninstall it. Or even deleting it, trying to find a folder, and deleting it again in the Recycle Bin. (Honestly, where does that stuff go?) Alas, it hasn't helped. Another one has popped up. So I looked up similar situations and tried to get help that didn't require risky options, like downloading other softwares that might as well damage my situation anymore than it has. I tried the F8 option, which didn't seem as risky. Unfortunately, it ended me up in my current situation. I'm stuck in a cycle of constant rebooting. It won't stop. Sure, I'm currently typing in Safe Mode, Networking. But beyond that, I don't know. The Last Known Working Option has failed, as well as going back to Normal mode. All I get are blue screens and another reboot. My hope is starting to wither as I find out that I have to get a hardware installed? Burn a CD? RAMs? I don't understand any of it, and if it involves serious technical difficulty, I think I might as well wait for a scolding from my brother. If possible, please get back a response quickly. Thank You.