I would strongly suggest you see a lawyer about splitting superannuation though. In addition, you may be entitled to some sort of spousal support. It is rare to be granted spousal support in Australia, however if you have been a long term SAHM and have no means to support yourself, you may have a case.
You really need to have a long hard think about how you will survive in retirement in the likely event that the old age pension will not exist. Now is the time to put yourself first. Family law provisions allow for super to be split. You are not doing anything wrong by standing up for yourself.