Be careful about jeopardizing your male identity because it is your truth and you can embrace it and save some space for your female fantasy. It can be a protected secret that you share very discreetly.
There is an exciting sexual component the younger you are but there also a thrilling component (adrenaline rush) that accompanies secretly doing something so daring.
If you also are attracted to females with an expectation of marriage and perhaps raising a family you need to disclose your current mindset and honestly discuss how it might fit in the relationship. For some guys here it has worked out incredibly well. A relationship with a significant other deserves this too.
There is no reason to abandon safety or moral principles as you dabble in this lifestyle.
It’s not something you have to tell the world because it’s hard to take it back. Most people allow you to live as you please but in the real world of jobs and making a living it’s probably easier to be yourself.