Starting note: I do not believe in the perfectness of the MBTI. I think in most cases it is quite brilliant, but I do not see why deviations from any of the boxes cannot-ever-no-matter-what!!! happen.
With that approach to MBTI in mind, the MBTI's use is only in helping you understand yourself/others (/"the psychological dimension of life"). If using the MBTI for this purpose, as far as your self is concerned, you would understand the most about yourself from understanding the type you
best fit. That type, to me, is E
NFP... simply because that is the type you most often are personifying.
Maybe there's a bias of being on the internet, where your communication is bound to be pensive and theoretical. Maybe you are not this way in real life, but are actually more so action-for-action-oriented's sake (ESFP, to me) and less pensive and ponderous? I get that you have a bit of an Se bug, but I'd find it hard to believe you are
not ponderous and contemplative IRL, and more interested in action and experience and variety of immediate sensation (Se/ESFP).
Maybe I am wrong about that. I do not know you nor have read all of this thread to understand how you could possibly consider being Se-dom, nor incorrectly think that ESFP's cannot be intellectual... but ponderous, contemplative? I personally don't think ESFP's can be that way - the dom function is the most desired function, compulsive-like in its quest to be satisfied. Se is immediate action, and being pondering and a little suspended-in-time is the antithesis of Se, so it just does not compute in my head. I say no to ISFP because you are so overwhelmingly interested in the outside world first and foremost that I can't consider your dom function as being anything but Extroverted (or is it Extraverted?).
Can be a lot of reasons you have an Se bug. Social/environmental conditioning, in the end. I know you've posted your parents' types before and their types did not involve Se if I remember correctly (I might be wrong, though. I can't remember if you said your Mother was ESFP or ESFJ, so either I'm dead right or dead wrong. Swear you said she was ESFx, but I could be wrong altogether.), but even so, conitioning can come from friends or even just the environment - psychological climate - you grew up in.
Having an Se bug would not, to me, make you more than one type (like those people who are seemingly both, at different times), or "balanced" between two because that still implies 'being' the other non-most-often-you type... I would just classify it as a person with a wider interest base than is usual for the one type. For example, you'd be an ENFP who realizes the significance or worthiness of Se (all the activities/philosophies that entails), and has that urge (doing Se stuff) within them often.
With all of this said, my gut is urging me to vote ESFP, which is the
opposite of what I've said here.

All I know is you seem more concrete, ground-ed, than the ENFP type conjures up for me. I think that's why my gut is compelling me to vote ESFP, because if I vote ENFP that might give you the wrong idea. So... I'm not going to vote. Other than "Most Kickass ENFP I've Seen."