I have all the symptoms you've mentioned...
You probably have ADD/ADHD... aka Attention Deficit Hyperactive Disorder.
You can have ADD with or without the Hyperactive component.
I've suffered with ADD my entire life too... and it's not the end of the world.
I wish I'd figured it out sooner... I would probably be a lot doing better.
Always been a daydreamer... have memory problems... have trouble paying attention... my grades suffered in school... disorganization... procrastination... people accuse you of making careless mistakes...don't follow directions...lose stuff... easily distracted... racing thoughts...
Do people accuse you of being lazy... of not trying... tell you it's mind over matter... snap out of it... you're irresponsible... you don't show any effort ... the list goes on and on...
This is a lifelong disorder and the sooner you get treatment the better you'll fare.
I'm an adult and recently realized I have ADD and did quite a bit of research once I realized it and wished I'd realized it sooner. So PLEASE... learn about the disorder AND yourself. The sooner you do, the better. Information means EMPOWERMENT.
http://en.wikipedia.org/wiki/Attention_deficit_disorder Here's a link... let me know if this helps, and God Bless.