if you have traded 25 times during the year then the ATO will probably regard you as being "in the business of" a share trader, which would mean that your gains are regarded as income gains ( from the business of share trading) and not capital gains. and you would add them on top of your normal income and pay tax on them.

So your probably better off speaking to an accountant to lodge this for you, rather than making lots of errors doing it yourself.
good luck