Forgot my email to my account

I made an account a while ago named "Retch". i had a time in my life I made a bunch of runescape accounts with random emails then quit. I got a bunch of new gear and now can't figure out my email. It says I have the same IP as the account if that helps. Can someone please help? I really want to get in contact with my old account. If I get onto this Retch account I can figure it out but can't figure out the password and the account is now locked from trying. I can answer anything to figure it out.

 

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@Retch - Please like this if you're set to go.