Administration Separation

Is requesting Administrative Separation automatic honorable discharge? Would there be any scenario that would change this to other than honorable or general discharge? Is requesting to get out early something that is approved fairly quickly or will I need to prepare myself for a fight?

Facts: 8 years active duty Contract end date April 2027 Mil-to-mil

Main Reason: Medical diagnosis of PTSD making work incredibly difficult.

Staying in the military is making my mental health worse.