The testing officer may give you feedback on things you need to work on. If you fail the test:
The testing officer will return your restricted licence to you. They will tell you why you failed and give written feedback. You get 1 free resit of the test.
During your restricted test, if you didn’t come to a complete stop at a Stop sign, that was a critical error. But in your full licence test, not coming to a complete stop at a Stop sign is an immediate failure error.