need help changing old account into new one

hi my name is matt and im having microsoft account issues. ive had this account for four years and now i am having trouble signing into it. I can not long in because my old email address which this account is attached to doesnt work anymore, i tried filling out the acrs form but that will just change my password but thats not the problem. i did create a new account which im using now and hopeing i can switch my old account into this new account so i wont lose four years of information and important memory that bi have used this account for. If i can not merge this old account with my new one all my events of four years will be deleted. If any one can help message me at *** Email address is removed for privacy ***