9 would make a lot of sense in the trouble in figuring out types I think too (even though for socionics, I believe 9's can have a hard time with making decisions and the like), ofc, Angelic, you know yourself better than any of us, but I think 9 is definitely worth looking into.

My dad is a type 2, 2w3 (xNFJ, EIE) and yes, he's strong-willed and he can be pretty aggressive when not doing well. 9's can be total sweethearts. The girl I was mentioning I get along with in my class, who types as INFP in MBTI, like myself, and we have a ton in common, is softer seeming than I am and I get the impression she's SEI, though she has hints of something kind of akin to scattered Ne too, so... I'm trying to figure out why SEI and EII would be a common mistyping, because it seems like this may be the case