Well, here I am again starting another project, and again I (probably) have a female protagonist.

I don't know why, but despite being a man, I gravitate towards female MC's. I've done two teenage girls, even though I have never been nor never will be a teenage girl.

So, is there a good way to have strong (not physically strong) women characters that aren't Mary Sues and aren't men with breasts? And not stereotypes?