How do i stop underachieving?
By working hard, things like studying, applying yourself at work (no daydreaming) and becoming organised. But you're not going to do any of that.
I'm interested.
Lower your standards
>>17940626
Find something you're really passionate about, and go completely overboard with it for a while, then spread that effort out to other aspects of your life.
Stop pursuing things you aren't interested in or passionate about.
If you're not passionate about anything just do nothing until something catches your attention, forcing yourself will just make you miserable.