I'm new to investing too! I've a net gain (according to my own...

I'm new to investing too! I've a net gain (according to my own calculations), but the tax tool i used on ANZ showed that I had significant losses. I don't quite understand if it was attributed to innocent "wash sale" or what as I had been buying and selling the same stocks (with different volume) to reduce my losses. How will this impact my CGT in the future? Can i bring forward the loss to offset future gain?