...use a particular gender label or micro label?

Yes

...use these pronouns?

Yes

...change labels or pronouns at different times?

Yes

...use pronouns or gender presentation that don't match my gender identity?

Yes

...change my understanding, description and labelling of my gender identity?

Yes

...use more than one label/micro label?

Yes

Please stop asking for permission, because

the only person you need permission from is yourself