Hello. I am 8054 and I got into nightcore around the time I was into dubstep at an extremely early age (I have been chronically online since 2012 at 6yo).
A little over a year (almost two) ago, I started getting into remixing songs into a nightcore form with heavy tweaks that I just adore. I have remixed anime OSTs from Full Metal Alchemist: Brotherhood, Madoka, and even regular songs like Kiroro's Mirai E. It is so fun mixing and listening to nightcore. Eventually, I plan to make AMVs that are heavily edited and all that to match my creations, but it is not in the things to list to do for another two or three years since this is all a passion project for me and I take it slow.
Remixing aside, some of my favorite nightcore listens aside from my customized ones are Everytime We Touch, Rockefeller Street, and Bring Me To Life. Generic I know lol.