Need help with my Microsoft accounts

I used to use a Windows Phone with a email, but I made an outlook account when they remade the site with my own name (which I'd prefer to be my main one now because it's much more professional sounding than my old live adress)

My understanding is Windows Phone is like Android and iOS, you have an email associated with all your data on the platform.

I was wondering if there was any way to migrate all my Windows phone apps and xbox stuff to this new outlook account if I were to pick up a Lumia 920.