How come no girl has asked me out or said yes when I ask them?

You'll never know and don't need to think about it just keep improving yourself and keep asking others

From my past experiences, if you act nice to the girls like the nice guy you are. They'll friendzone you lol. If you spoil them as a friend, they'll friendzone you. It's hard because you're probably naturally a nice guy like me. The girls who have all confessed to me were all girls who i was joking conceited around. Girls are attracted to confidence and your badboy intentions. Flirting and etc. It's the way you carry yourself once you get to know them. This is all from personal experience so I can't say really but it kinda makes sense lol. For example, this could make the biggest difference as retarded as it sounds... " You wanna go on a date? " versus " You and I need to kick it " if it means that you have to change you who are, then don't do it obviously but girls are more attracted to the "Normal" me than my romantic side lol.

Awww~ Thanks Wallace, but sorry I can't take you up on the date offer, there is another guy that I like that I met through here ^^"

how did you ask them?

I approve of tornadomushroom! To quote myself or someone else.. "There's a difference between nice guys and desirable guys."

Extra data: Just about everyone I know says I'm like a ninja. They say i'm quiet and that I show up out of nowhere. I've at times been made fun of by women for how I look in terms of my face. Many of my friends tried to help me get a girl by taking me out to clubs and they've even gone shopping with me to get clothes that would help me fit in better. I am quiet but I like to have fun and I joke around to. I am a shy guy but I do talk to people I don't know.

All I would really say is to try and be more confident and work on being less shy :) Let "FUN" and "Joke around" you show more and i'm pretty sure you'll be a lot more appealing. Being shy is inevitable but being shy does not mesh well with trying to find a girl :C