Hi H&H,
Yes, books are my best friends!

I still would rather avoid confrontation, but I'm more able to face certain problems more quickly than before. I still retreat, but am quicker to think through how important the issue is. If it matters a lot, I try gentle assertion. If that doesn't work and it's still important, I get a little louder.
I am accepting that this is a valid approach. I think in terms of silver bullets. Some people automatically go into fight mode but I think over time this loses effectiveness. I'm pretty gratified in one conflict I had last year that because I usually hold my fire, when I did shoot, the group at large took notice and backed me up when the other party complained. I had credibility because of it. I hope this makes sense.
My sense from your email is that you don't know you have rights. Your parents probably taught you that you didn't have the right to speak up for your needs. This is my issue too. Now that I'm older and have gotten therapy, I understand this part of me much better. We do have rights and can speak up for them appropriately.
Funny thing, I'm really comfortable on the telephone. I don't phone up friends a lot but in business, I'm somehow able to connect in that context and be of service. If your colleagues are in the field, working alone, you become a steady regular presence that's on their side. So they like calling. If you prove to be dependable, they notice right away. So you will be recognized.
Anyway, don't be nervous! This shy girl could do it and you can too! MP