Eh, there is no point in trying. Instead of making a huge effort - eventually in vain - to find a girlfriend, you should use that energy far more wisely, and put it into improving yourself. That way the energy is at least well spent, and you get something out of it - even if it's just a temporarily good feeling.
All this "don't give up, keep trying!"-type of advice is unrealistic. There is no point in "fighting" for something that useless and unrewarding. A girlfriend you had to look for breeds more problems in the end than being single all the time ever could. It either happens that you meet someone, you fall in love with each other, or it doesn't. You can't force it, and you can't "try". There is nothing to "do".
Just keep living and talking to people, and perhaps some day something will develop with someone.