There is no "right" way to be OP - no one can tell you how organised you ought to be. All you can do is look at:
a) If your behaviour is causing you personal distress - ie: you hate always being late but can't seem to stop yourself, your life feels chaotic and out of control, etc.
b) Your behaviour is putting yourself or others at risk - regularly leaving oven/straighteners/heaters on, bad food hygiene, forgetting medication, etc.
and/or:
b) It has a pattern of causing friction with people around you - several people in several contexts have expressed distress/frustration at your actions, it has impacted your work, made friends more distant, been a factor in the breakdown of relationships, etc.
Is this the case, OP? If so, regardless of whether you want to pursue a formal diagnosis, maybe you should consider looking into strategies to help you get more of a handle on your own life?
I used to be very disorganised and I found it extremely stressful - I felt like I couldn't rely on myself and that I was always going to mess up/let people down. Getting strategies in place has been literally life-changing - I don't feel so overwhelmed and self-loathing all the time. It's difficult in the beginning, but it is very worth it, I promise x