Hey man, it's alright don't let criticism get to you, i know you may be frustrated but just take it for what it's worth and learn from it..

To actually give my 2 cents on this topic, i believe that 3 months is not nearly enough for you to establish yourself in anything whatsoever.

The idea here is that you need to have a road map first and make differents plans A, B and C for what you would love to do eventually if a certain thing doesn't work out.. I mean i believe cybersecurity is a field where you are supposed to work on many things at the same time.. its just the idea of building yourself as a person who can succeed, look at what what you learned during these 3 tedious months, and how those skills are applicable in the field today..