Dude, it's okay we all experience this. But try to keep it up and eventually you'll meet a girl you like. I think you should always try to address girls specifically, try to look interesting and unique. I know it's hard to keep up the enthusiasm after so many rejections, but the frustration due to rejections might reinforce the low response rate. I mean you keep losing hope, so you're not trying hard to phrase a nice letter to every girl, because you think "she'll ignore me anyways like all the others". So try to avoid this feeling and it'll work out. I did for me.

I also don't get why women do this all the time. You have a few exchanges of messages, everything seems great, she totally looks interested, then she disappears. You simply stops writing you back for no reason, and you don't know why.

A bigger problem is that LOTS of women here just go for money. You wouldn't think there are so many. So I advise you to avoid girls who pose in front of nice cars, hotels, and every picture of hers were taken at some expensive vacation resort.