ive never completed anything. (Rant!)

even if i like a manga a lot ill stop reading and never read it again. i just abandon it until a year later and i'll try to re-read it but still never finish. im aware that it probs becuse of my adhd, but i feel like despite that it would be so easy to finish something; i just never can and makes me upset becuase i ca nt even think of something ive completed in general. Like i can never fill up a sketchbook, cant finish school work, cant finish shows or books. IT JUST SO FRUSTRATING I WANT TO COMPLETE SOMTHING BUT EVEN AFTER ALL THESE YEARS I HAVE NOTHING TO SHOW!! :(