If IRCC senses something is off, they won't care the consultant told you to do it. If you didn't work for that year, don't say you did. Include a LoE with your new application indicating you applied in the past but withdrew your application. Indicate that you were unemployed/in school/whatever your true situation was for that year.
Was the fake work experience you tried to claim in the past related to the NOC you're applying under now?