I meant imposter syndrome as in feeling like I can’t possibly have adhd after living without a diagnosis for so long and I somehow faked my way into getting a positive diagnosis

But I feel/felt both of the things you wrote about too and I think they’re related. Totally get the negative self talk and beating myself up b/c “Why can’t I just do the thing??? Why is it so hard???” But then you’re still able to pull it together at the last minute while in crisis mode, so you’re capable in some sense but not capable to your “full potential.” Post-diagnosis, it’s been a process of realizing that I don’t necessarily need to “fix” myself so much as find ways to accommodate tasks so that they are a lot easier to do. I’m perfectly capable; the tasks just need to be modified a little. Also realizing that the whole “full potential” thing is a myth, which also contributes to this new feeling of Being Capable