In recent years, being quiet wasnt considered a handicap.
At the present time, having 12 couples dating now through me, and having just made a Shidduch, I can confidently state that I have my finger on the pulse of Shidduchim.
It's a hardship to get guys to date quiet girls in the first place, and when they do, the guys reject them most of the time. When comparing notes with other Shadchanim, they agree. Lively guys most often want lively girls and quiet guys want lively girls most of the time as well. Girls get a reputation of being either, with few in-betweens. I've found this applies all across the board- learning guys, college guys....
What I've been experiencing lately, is that the quiet issue is even more problematic than the weight issue. If a guy has "fun" with a slightly overweight girl, he might continue dating her. If a girl is a size zero and quiet, she wont get a second date. Heaven help, if she's a size 8/10 or larger and quiet....
When the quiet girls are told that they should be more assertive and fun, they're very sensitive and it often makes things worse. They develop a complex.
Other than Daven, what should a quiet girl do?