Acting mature and being mature are two different things. To me ‘acting’ mature, is usually, well, just an act.
I meet a lot of people with ADHD, from all around the world, from every level of society, and most have something in common, which I think isn’t really touched on that much, or, enough: We tend to believe that we do not act mature enough. I’ve been there and I’ve done that too.
In my opinion ADDers are far more mature than most people I meet at any level:
We are concerned, sympathetic, empathetic and resourceful, have a fair amount of common sense and find ways to make it when the odds are against us! We can negotiate, bargain and find a way when no way is clear. Every ADDer I have met wants to improve them self, tend to admit, and take responsibility for, mistakes and seek assistance. I have yet to meet one of us who has said he or she is perfect and I haven’t met one who isn’t willing to help another to some degree. It also seems to me that people with ADHD are far more aware (sometimes too aware) of their faults, than folks without ADHD.
I am also inclined to believe that the above description I have given is a source of pride for people with ADHD everywhere, even though we usually do not to take pride in much of what we do, or, who we are, and that is changing too.
You are far more mature than you give yourself credit for. No acting is necessary when it is already a natural part of who you are.