Don't beat yourself up.

Similar situation. Two of these girls talked to me at school very, very long ago, for about everyday. Didn't know if they liked me for either my character (which they couldn't see because I was a hermit) or my nerdy looks. Whatever it was, it was a blessing. Sometimes, I'd run away because I got nervous. I regret those moments. I also saw this girl that I would walk towards then walk away because I was just too afraid of rejection. I was an extreme introvert. Unfortunately, for the rest of the school year, the girls fought. One would talk to me at a time. I lost the chance at being with both.

Look on the bright side, you tried! That was way better than I had done, completely not even getting to the part of saying something. I didn't even try to fully go and get their attention. I regret it, not because of embarrassing moments, but because I just didn't even try. My parents are pastors, so of course I get to be special and people just like me for existing. Trust me, not very lucky. This may open opportunities to talk with people, but because I expected people to automatically love me, I lost a chunk of social skills that I had to develop at that time. They still follow me, but because I kept trying, and being myself, I no longer am such an introvert. It will get better. Keep on looking for helpful advice, keep trying, and best of all, never believe your a lost cause. Your not. You can mend from this. This was just a part of the past. It may be a horrifying moment, but one day, you'll think it's nothing. You think it's a stepping stone. Not sure if this will help, but best of luck my friend. God bless, :)

~Rosin