mmr reset possible?

So my mmr is buchered so hard from last season, see i started playing ranked as soon as i turned lvl30, anyways is there a possible way to reset mmr, and when i say reset i mean no new season soft reset blshit, i mean hardcore pure reset, like i just turned lvl 30, Before someone says make a new account i have to tell you that i own 109 champions and a few skins, therefore i want to stick with this one.