Processing late inattentive ADHD diagnosis?

I (37M) have recently suspected I had inattentive ADHD and last week saw my GP who thought I probably did based on the symptoms I described and has referred me for a diagnosis.

It's been a bit of a wild ride thinking about different aspects of my life through the lens of inattentive ADHD. Things just kinda make a bit more sense, like the forgetfulness, being easily distracted, procrastinating, daydreaming, only performing under pressure etc.

While there is an element of relief for an explanation, there's also a feeling of loss that I could have achieved way more in my adult years had I recognised this/had it managed much earlier. I'm also thinking about how it's impacted friendships and relationships and career progression.

I also swing from that to how I can or should manage things going forward.

Don't really know what this post is about, but I don't really have anyone else to talk to about it. I guess I'm wanting to know how others felt if they've been through a similar situation and how they processed it?