ADHD and ASD diagnosis and not knowing who I really am anymore.

I'm a 30 year old female that recently got diagnosed and instead of feeling like a weight had been lifted from my shoulders, I'm feeling something similar to an existential crisis. A lot of my assessment was me saying "oh but everyone does that" or "but is that not completely normal?" and being told that no, they were strong ADHD/ASD traits. Now I'm wondering who I actually am as a person and what's just an effect of having neurodevelopmental disorder. If I suddenly stopped having these things, what would be left? I feel like everything that shaped me to this point isn't really me and I'm no longer a "real" person. I hope this makes sense. I can't really find anything about this feeling anywhere and am hoping somebody here can help.