Every UX designer has to decide when showing the project done, should they only show their top and well done project or all project including the project fucked by them but also thought them some important facts.
If you only show top and good project, then the employer / clients will setup high expectations.
And the moment you start the project and show some output you might disappoint them.
Rather solution to this problem is show everything you did good bad and explain them what you learnt from bad one and how you improved in other project.
This set up the stage for you that even if you are not good for your first attempt you can improve with feedback.