Hey Primo.
Was that you who mentioned something about a huge bet on Collingwood last week.
If it was,don't concern yourself with the amount others invest.
For some people,$5 is equivalent to anothers $500.
I know people who go to the tote and invest $200 on a horse,after just 2 or so minutes of thought.
If it is calming to you to know that somebody lost more than you did on the event,then you need to re-assess your punting attitude.
Tell you what.If I saw $5 in the gutter,I'd have no qualms about stopping to pick it up and putting it in my pocket.
When you start investing more than you can afford,you begin the roller-coaster ride to disappointment and many sessions of misery.

Six selections in a Multi is pushing it a bit.I suggest you knock it down to four.
Write down the payout for each of the possible combinations of four,and see which of these turn you on the most.

Cheers Mo.