Is it an ADHD trait to feel so chronically overwhelmed by things big and small?

I’m not diagnosed but I am going through the process of ADHD referral as of this month. My mom as well as a ton of my close friends have ADHD and we share a lot of similarities, which is what lead me to seek a diagnosis.

I’ve always struggled with ‘adulting’, I am 21 and at the point in my life where I’m expected to get a job and consider moving out but all of that horrifies me. The thought of working forever overwhelms me and I was looking at flats for about an hour before the concept of rent and bills and taxes and debt stressed me out so much I had to completely stop and watch a show to decompress.

I have a lifelong history of dropping out of schools and quitting jobs after a couple months. If I have more than one obligation in a week, like a doctor’s appointment or chores, I get incredibly stressed. and I’ve always been incapable of dealing with long term responsibility like bills.

Everything that should come easy to most adults, fills me with the most existential dread to the point I just want to hide under my duvet and not do anything ever. I can’t do any of it without spiralling. I feel completely broken and I wish I knew why. I don’t want to believe I’m just lazy.

I have my mother supporting me right now, but I know I can’t continue like this for the rest of my life.

Is this worth mentioning during the diagnosis and treatment process or is this not related at all? I have heard other ADHDers feeling a similar way, due to executive dysfunction and emotional dysregulation, but I could also be the problem lol