An Other Than Honorable discharge follows you. It can block VA benefits, complicate civilian job applications, and feel like a permanent verdict on your service. It isn't necessarily permanent — there's a formal process for asking a review board to reconsider the characterization, and many veterans have had discharges upgraded.
The process isn't quick and it isn't guaranteed, but it follows a defined structure. Understanding which board handles your situation, what they're actually evaluating, and what kind of evidence tends to persuade them puts you in a far stronger position than guessing.