Failed annual recurrent line check

[twinotterifr]

As the title says, i failed my recurrent (a320), first fail in my entire career. Everything was smooth up until the landing roll out, my fingers slipped and failed to deploy both thrust reversers to idle. Startled effect took place, attempted a second time and only the right thrust lever went on rev idle. Captain took over thrust control and use max reversers. The icing on the cake was that prior to descent, i briefed that i intended to vacate first exit on the runway due to the nature of the busy airfield, performance calculations met the criteria with autobrakes low but normally we would disconnect the autobrakes earlier. Because of the thrust control issue combined with the startled effect, i braked significantly harder to commit to the first exit where in hindsight letting the aircraft roll and vacate via the second was significantly the better decision. All factors combined, the examiner decided to fail me due to unsatisfactory workload management.

With all this said, my morale is deeply crushed. I even read online that at the airline level, only 1-5% of airline pilots fail a recurrent. I'm seeking advice if this is deeply going to affect my career or command upgrade, and if there are other similar people out there who have failed a line check and continued to have a successful career/captaincy etc. I am extremely bumped out at the moment.

edit: 4 years flying, 2000+ hours, 4th line check