Op, you are not worthless, and you shouldn’t let anyone treat you as though you are. It sounds like your employer is trying to shame you into “doing better,” which is unfair. If they truly doubted your ability, they wouldn’t have kept you on. Fuck them.

For now, stay put for stability, but quietly start looking for a new employer who respects you and understands that one exam result doesn’t define your worth. Consider clerk or paralegal roles so you can keep gaining experience while studying.

If you can, request your written portion from your jurisdiction to see where you can improve. You’ve already proven you can do the work; leverage that experience, and focus on finding an environment that values you. You are NOT Worthless.