register as a sole trader?, page-9

Thanks trees :) After talking to my accountant and finding the appropriate links with the ato that is the way i am thinking of heading. 2 quick questions if you have the time. Investments vs trades can that be separate portfolios or is separate accounts really necessary? And now i am just going to sound incredibly dopey like i shouldn't be doing this at all but "trading plan" Is that just my rules that i have been developing for trading or something else? Thanks in advance