Women care about 3 things.
1) Money / Career
2) Confidence
3) Social Status
You don't have much of either since you're making this thread.
And you're obviously developing a case of one-itis. It's happened to me many times but I've learned how to shield it for the most part. And I do this by realizing it is pure, unadulterated physical attraction that makes a man stalk / think about / obsess over a woman he doesn't know.... in an emotional way.
Therefore, any emotional components you are experiencing... desire, lust, want, need.... they are all based on the way she looks.
Sometimes I still get caught off guard if I see a petite skinny blonde with a fat ghetto booty. I try very hard not to look but if the booty is right, I'll find myself veering off into... "OMG LOOK AT THAT ASS!" to>> "this woman is my soul mate".
There is no magic trick. You just tell your dick to STFU and cut off all that emotional shit. Sometimes I will attach a random # to a girl. Label her in your mind as "Girl #989". This will help you objectify her like you should. You don't fucking know her. So don't get caught up thinking this girl doesn't fart, shit, and scratch her ass... she does. And her shit smells just as bad as yours does. Chances are, it smells worse.
This should be the only thing you're thinking about while approaching. How bad her shit smells.
Me personally, sometimes I'll pretend I'm a serial killer. I pretend I'm going to kill woman 989. If I believe she's an object all fear drops out the window. So if I say something stupid, I don't freak out. I keep a perfectly straight face cause in 10 minutes or less she will be tied up to a tree in the middle of some desolate forest.
If you can adopt this type of mindset, you will be golden.
More importantly. You don't sound like you get out enough. This sounds like a proximity infatuation triggered by too much isolation. And if you walk 2-3 blocks down the road you can find women 990, 991, 992, etc.
Treat it like math. It's a numbers game and you're a serial killer.
Go walk up to her and say, "Sorry, I only have a minute but I noticed something about you and wanted to make a quick recommendation"
If you're not all weird and creep about it, she'll say "ok".
Then pull out your phone w/out blinking, turn your head away from her, hold your phone in front of her, pause a second then say, "I recommend you put your number in my phone".
That's all it takes.
If it fails. Move on to the next target.... I mean woman.
-BB