Like some other things in life, people that haven't gone through this are not likely to understand the experience.

Since you care about increasing your employability I recommend that in addition to self-learning you also do the following.

Write up 1 or 2 short paragraphs that are mostly BS about the positive business impact that your work is having. Break this paragraph down into small work tasks or interactions that you would have needed to have in order to accomplish. Over the course of the next few months start mentioning those tasks casually when talking with coworkers. It is important to do this gradually so that people have enough time to absorb the false memories you are seeding.

Your goal is to build up a working memory among your coworkers of the awesome stuff you did while working there. You can then write these accomplishments into your resume and they will be backed up by your coworkers. Your manager especially will appreciate this as it makes them look like a great leader.

Good luck and keep yourself focused on the future!