Reddit – Dive into anything

My youtube channel have been hijacked , and they post a bunch of crypto video . After that youtube delete my channel they sent me a form to fill out about the hijacked problem but i cant find the youtube channel create date to fill in because they already deleted my channel .They tell me that i can find a email announce me about the youtube channel created date if i dig up my gmail did and found nothing , my oldest email that have youtube related in is an advert form google saying that i should dowload youtube .

Is there any other way ?