I know you said you have a specific type in mind but maybe just try anything.
The example you used about the girl on the bus. Do you think you'll ever see this girl again? If you strike out heck man that's life just move on to the next. You've just got to get it out of your head that asking a girl out can be difficult, woman don't usually make that first move so it's on you just try it.
Good luck man we're all looking for that special one deep down
