Hi Lisa,
Welcome to AS. I'm glad you are here for your sake, but terribly sorry that you have had an experience that has made it necessary.
I'm a newbie and also in Sydney, Aus.
I was sexually abused for 6 years and have cried about it once - 2 weeks ago. The abuse ended about 10 years ago. So I think that not crying is perfectly normal. I would berate myself for not standing up for myself, but it is (I think) a survival instinct in us that kicks in. I guess that is why people consider us 'survivors'. Try not to be too hard on yourself.
It is great that you have support from your mum and