I've had the most insane expirence!!

It all started during a late night web-surfing session.. The next day all of my devices were being taken over, HACKED! What a nightmare! I am not the most computer savvy there for I did not recognize what was occurring at first. Initially I began to get the blue screen of death on my windows laptop, then the computer began to fail altogether, and it was like a dominos affect onto my dads computer, my daughters tablets, the phones and TV's. Then I realized the WiFi was then compromised.