how do i find my family tree I created in another account

The FamilySearch family tree is a single tree for all. If you created profiles for living people, those are only visible from the account that you used to create them.

Any profiles you created for deceased family members are in the tree and findable by name. If you kept the details, you can also search for deceased profiles by profile ID code.

https://www.familysearch.org/en/search/tree/id?from=tree