I note you said you were new to share trading, I think I mentioned I do not trade as such, mid term swing trading on TA and a tad of experience perhaps. But if I were to give advice, which we never do here it would be don't fret over the system or the regulators or posters who complain daily about the rigging. You will find posters after posters with constant angst against "the big boys" robbed me. I never give regulation or manipulation a second thought, in 40 years I have never joined in the "woe is me" which incidentally you never hear when its going up, all's sweet then. My suggestion is play the game like a footy player, play the ball in front of you and leave the length of the pitch or the size of the oval to the umpires, same with the rules of the game, none of that is a concern for a player. You sound like a successful guy anyway so my next bit may have no merit, leave leverage at the door when you enter the markets, because the markets are designed to sniff that out at some time, on that you can bank.
There you go 45 years of market fun, I still love the markets, been broke a few times over that period too, just a part of the learning curve of life.
Cheers
Phil.