I feel your pain.
It wasn't any girl. Just one. She probably was "the one." She still haunts me 40 years later. Remember that it is better to have loved and lost than to never have loved at all. Fortune favours those who initiate. Be yourself, but don't talk about yourself. Treat the lady with respect and consideration. The rest is chemistry. It's either there or it isn't.
Good luck. Don't die wondering like I will
Thanks lot for the advice