How can I erase my online identity?

[flatflavor558]

I am worried about how much information about me could possibly be available on the internet because of website accounts, so I want to make my existence on the internet completely invisible. If somebody Googles me, I don't want anything about me to come up. If somebody wants to find out where I live or how to contact me, they can't find anything. If somebody looks up my personal info, I want there to be nothing on me. In other words, I want it to be like I never even existed on the internet. I had Facebook and Twitter accounts under different names that I only used to see what I could do on those sites and didn't post any info on, which I deleted. I had an account on a Harry Potter RPG, which has been inactive for over 2 years and has probably been deleted. I had a Nick account, which I deleted. And of course, there's my Yahoo account, on which I will delete my answers profile, erase any info, but save for email. Anything else I can do? Thanks.