I think I have ADD... Can you help?

The problem is, I'm 20 years old and I think I've been living my entire life without any form of treatment or help. So before I waste your times, I'll list some of the things I do that can merely be bad habits or can be real symptoms of ADD/ADHD.

-Very dangerous but I often zone out while I drive. It used to only be a problem because I would miss turns I was supposed to make. However, recently its been getting worse. I've been breaking dangerously late (close to an accident every time) because I had not noticed the car in front of me stopped short. So far, I never got into an accident but I'm beginning to get worried.

-Feeling of deep restlessness and agitation. Constant anxiety and a feeling of uneasiness.

-Easily agitated when nagged about cleaning my room, organizing, etc.

-I find it extremely hard to clean my room and do small, easy things. I usually forget it.

-I procrastinate without intending to...

-I zone out in the middle of a conversation. If while someone is talking to me and I zone out, I either just reply as if I am agreeing with them (sometimes I sound stupid because it's irrelevant). I often zone out in a long conversation when I am listening and I lose track of what is going on in the story being told. I am not sure if I zone out while I tell a long story but I usually forget what words I was about to say even though if I was a second away from saying it. I don't have a speech impediment but I occassionally stutter sometimes when I'm about to say a word but I forget what it is.

-I tend to shake my leg and pick at the skin under my nails without knowing. I used to think it was a bad habit of shaking my leg but after trying extremely hard not to shake my leg, Which, I probably have RLS... The feeling of need to shake my leg subsides if I shake my leg or move around. Instantly comes back if I don't move or shake.

-It's EXTREMELY easy to distract me while at attention to something. Especially in class. At work, when more than one customer asks me a question at once, I tend to get distracted by each one, therefore ignoring the first person who asked the question... which isn't good :(

-I find it hard to start or finish a project of any kind, whether it be a paper to write or just a personal hobby project. I love to write creative writing. Writing stories and screenplays. I can't even bring myself to write anymore... and I used to be a master of free-writing.

-Hard time remembering conversations and small details.

-I definitely have Hyperfocus although to WHAT exactly I'm not sure. It changes every once in a while but I lose track of time while focused on one thing and become the "irresponsible" one that hasn't taken care of any responsibility for that day.

-I constantly misplace things. Recently, I've been misplacing my wallet and keys often... and my phone. Always thinking I lost it but it's somewhere in my house or car.

-In the middle of conversations, I tend to interrupt without meaning to.

-I CANNOT SIT STILL! I always fidget around some way or the other. My leg, repositioning myself in the seat, etc. If I am on a date, getting a cup of coffee (I don't even drink caffeine or tea...) then my date will just see me stare at her and shake my leg or fidget around looking at every single thing that makes a noise.

-Trouble staying motivated... for the past 2 years, I feel as if my motivation has gone from severely little to nothing. I know for a fact I screwed up my first 2 years of college... let alone I screwed up my high school grades...

-Things I learn in school such as Math, English, History (especially), etc are easy... Sometimes it feels as easy as breathing and I secretly think to myself, when others' don't understand, what idiot they are. Yet at the same time, my grades will always come back low.

-Recently I've been getting an explosive temper... I'm not temperamental or moody but once in a while, I would explode... over nothing. And I DO mean once in a while. I'm not bipolar or anything. It happens like once every several months. But the time interval inbetween have been getting shorter.

-I used to shrug off criticism but I'm becoming bit more sensitive to criticism even if I know it's not personal and it is constructive.

-I get bored... too easily. Just talking with friends bore me now... I always seek something exciting.

-I have extreme racing thoughts. A lot goes in my mind but little is shown to the outside.

Sorry if this is long. I'm almost quite certian I have RLS and/or ADD. I'm considering taking medication since I've tried cognitive behavior modification/rehabilitation. I heard for RLS at least, you take dopamine agonists which opens up dopamine receptors. What's that like? I saw the side-effects and they seem... pretty bad. For ADD, I want some adderalll. Definitely to take myself and not for "smart". I've lost the past