There are some good suggestions here, although HN isn't the place to go to for a medical diagnosis.
Two suggestions:
Are you eating a healthy diet? I know from experience that its easy to let this slip at your stage in life (my guess: early/mid twenties) and poor diet made me feel tired and foggy. If you think this needs attention then you might want to take a vitamin/mineral supplement as a temporary measure while you sort it out.
Also, lifestyle. You say "I get on the internet and just get distracted" and "skimming huge amounts of information online". Try taking some time away from laptops/phones/tablets. Go outside and think with a book and some paper. Get some exercise, if you're not doing that. Get quality sleep and avoid using screens just before sleep [1]. Practice avoiding distraction [2].
Two suggestions:
Are you eating a healthy diet? I know from experience that its easy to let this slip at your stage in life (my guess: early/mid twenties) and poor diet made me feel tired and foggy. If you think this needs attention then you might want to take a vitamin/mineral supplement as a temporary measure while you sort it out.
Also, lifestyle. You say "I get on the internet and just get distracted" and "skimming huge amounts of information online". Try taking some time away from laptops/phones/tablets. Go outside and think with a book and some paper. Get some exercise, if you're not doing that. Get quality sleep and avoid using screens just before sleep [1]. Practice avoiding distraction [2].
Good luck.
[1] http://well.blogs.nytimes.com/2012/09/10/really-using-a-comp...
[2] In my opinion, managing distraction this is going to be the critical life skill for the next fifty years.