How can I avoid over plucking my eyebrows?

This is what I would do. Try your best to grow out your eyebrows (wait a month so it all grows out), then go get them THREADED and tell them you just want to make them look neat and not have too much taken off. Threading is great because it gives you a very precise and perfect eyebrow. Then you can maintain the shape at home whenever a hair grows out of place. This is what I do, and it works very well because I too hate over plucking!