It is quite possible that "the internet" is causing you issues. A study has been released about ADHD and social media and how to "cure" it....

One thing that is evident is that social media (especially combined texting, tweeting, forum chatting etc) has reduced the user's ability to concentrate upon anything for any real length of time... thus the flitting about and inability to study, enjoy a good book, movie etc....

Try to wean off some of it... I think relearning how to engage one's self in real life is a skill worth working at...yes? (It could be if you are young that you were never taught how to live without technology "baby sitting" you?)

It isn't your fault..but you can make your life better I think.