You are right it is complicated!! And you've done (achieved) exactly the same as I did 30+years ago when around your age....in anout the same time span too!
Its good that you now got a 1/2 unit pen.
I'll tell you what happened to me with such good hba1c....I managed a large new store, and we were in process of getting it ready for opening. I went badly hypo.. Was found by a driver who almost knocked me over on a dual carriageway 6 miles away. I had left with the store ketlys and safe key (which somehow I still had!)
The driver had almost knocked me over, thought I was drunk.. ( not in a car!!) at 8pm at night. I had been reported missing to my fella, and to the police. The driver when I was begging him not to leave me realised I wan't drunk.. Found out my address and took me home, where he then called for an ambulance because my fella was out looking for me. He got me in to ambulance, locked up my house and gave ambulancemen my keys. I was actually missing for 5 hours and all I ever knew of this male guy was his name Steve which the nurses told me when I came round.
Now, this was why the consultant wanted my levels higher. As hypo awareness if you keep levels too low can go. This incident was in my early days of diagnosis. I was lucky that this guy Steve was a good guy.
After that I have always maintained higher levels as much as poss but the meters we have nowadays give a lot more info than we had then.
I got my hypo awareness back, but still only 4 years ago almost lost my licence due to a driving incident. I had pulled over and was treating myself.
So its incidents like this that your Consultant is going to be aware of and he is trying to guard you against.
It is good to have good control, I have no complications after 30 years, but I could have been dead from that Steve incident.
You also need to live and enjoy yourself and it is certainly a fine balance to try and achieve.
My personal advice would be to try and stop the drops..(one of my favourite expressions!)