I apologize in advance because I mean this in the most thoughtful tone possible. My question is are you comfortable lying to people who love about who you are? Can you handle lying to yourself and justifying why you hide things from people you love? If you are then I say ok... However, I am guessing this is really eating you up hiding who you are as an ENFJ? The fear may come from not being accepted and I understand that. However, part of me wants to tell you in the long run it "may" only cause more damage.
1. What if your parents find out you were lying? Are they the type that would hold that against you?
2. Hiding it could give someone leverage to attempt blackmail. Would that mean you "could" consider something heinous to cover it up?
3. Can you wake you wake every morning and look yourself in the mirror in a positive manner?
I understand you have a personal tough decision ahead but, only you can make the best decision for yourself. As only YOU will be living with You for the rest of your life.