My Hotmail account was hacked into and even though I had access to my account, I did not feel comfortable, so I permanently closed it down. I’m still able to use the address as a website login, so I know no one else has been assigned my username. I would love to once again be able to use this email account.
You may not be able to.
The fact that you can use it to log in to some other service means nothing. What matters here is your ability to log in to your old Hotmail account, and whether or not we can recover that.
I’m guessing not, for reasons that apply to just about any email service out there.