Relevant issues are #2, #3, #4,#5
As for #6...
You are talking to a guy, who spent pretty much 4~5 years in Africa, with no power during about 3 of those years, wasn't allowed to be with friends, or make any due to ''family position'', AND my whole life there fluctuated around having money, to having absolutely nothing to eat, and whatever I actually got to eat, I left it to my brothers.
So you see, more than enough reasons to let myself down when I returned to Europe, and think of myself as worthless/powerless.
Which isn't the case.
Picked myself up, and that made me the man I'm today.
SO.
No excuses.

You just gotta find the drive for it.
With my own life experience shared, and out of the way, TO BEGIN!
#2 OK.
So, here's the thing.
Even though she's an attractive female, she's still a person.
One of the things that hinders you is that.
You go (over dramatizing):
Sometimes I tend to ignore people unintentionally, if I realize I ignored her, or she points it out, I joke about it, then conversation issues.

Relax when talking.
That's all.
#3
You aren't dead.
Social skills can still be picked up.
I bet there's grandpas out there that get all the ladies.
#4, #5 Don't sell yourself short.
Again.