I don’t think it means your fetishizing black culture. You said so yourself that, black people have helped you find an appreciation for your mixed background, and that being influenced by the diversity of Black people and our various cultures and styles has helped you to love yourself. TBH, I think that’s cool that you’re getting more aware of racial disparities and learning to appreciate other cultures as well as your own.
I will say though that feeling like you identify with Black culture more than your own is a tricky thing because it’s like this..by your own admission, you aren’t Black, so you can’t *really* identify with us. You can relate to our struggles as POC. You can be influenced by and appreciate our effects on pop culture/fashionl/music/language and you can even immerse yourself in our culture(s) and gain a greater understanding of Black people, yourself/your background but you should also ask yourself this: are you identifying with mainstream images of what black culture is “supposed” to be (ie, the pop culture stuff)? Is it just the flashy parts that you’re appreciating and feel drawn to?
You know the saying “everybody wants to be black, but nobody want to be black?” If not, see: Miley Cyrus, Justin Bieber, Iggy Azalea Taylor Swift, Katy Perry, etc — each of these people have snatched choice cuts of Black Aesthetics in the name of feeling like they “identify” with Black culture, but in reality they’re just being basic shit-stains because they’re appropriating and fetishizing our culture, wearing it as a costume or facade to be later discarded when no longer needed or ‘interesting.’ And this isn’t just limited to white artists either— other POC pop-groups and singers are guilty of this as well.
So if you think that by listening to a certain music genre or talking a certain way or wearing a certain style of fashion is ‘identifying’ with black culture, there’s a 90% chance you are being offensive or doing offensive things.
The easiest way I can think about it is this; weeaboos. You know how they get overzealous about Japanese culture and Japanese people that they basically make everything even remotely having to do with Japan “Japanesey” and do things that even warrant a side-eye from Japanese people? Yeah. Apply that to pretty much any culture outside your own that you’re interested in (this goes for anyone).
If you’re suddenly feeling like you have to “talk black” or whatever in order to show your appreciation for Black culture, you’re probably being the Black culture-fetishizing equivalent of a Weeaboo.
Also, keep in mind that Black culture and Black people are not one and the same. Just as “Asian culture” and “Asian people” or “Latin@ people” and “Latin@ culture” are not one and the same.