I mean achievement as something that's perceived by society, something that you don't do for enjoyment, something to profit off of in some way (be it simple recognition or raised social status), "I will do this because people will also see it and that's very good". It can be the expectations of relatives, workplace, college, or you're just doing something for the workplace or college.

I'm asking because I cannot imagine what hobbies/activities outside of performing for somebody can be negatively affected by short attention span. It's not your problem that people are just boring and don't treat you like a god damn human (workplace that requires you to sit and sign documents for 12 whole hours with little to no breaks, or endless inefficient meetings, for example)