Hey Wish-ga;
Forget about the 10 properties in 18 months stories; that was over 10 years ago in another time. Cheap properties in high rent yield areas and during a boom. The good old days.
A good first step (other than increasing your income) is to learn patience with all this (no sh*t!; I hear you saying).
I don't know how old you are, but I didn't start "investing" in real estate until 2000. At aged 39.
At this point in time I had bought/sold a few houses (PPoR's) and had arrived at this age with a fully paid for PPoR by fluke.
I know this is ahead of where you are now, but stay with me.
Also, I didn't access any of my PPoR equity for years (until the PPoR was paid off), so having even the knowledge to do just that one thing will put you past where I am in the same time-frame easily.
Then, I discovered property investing, and once I started reading and studying, I was awake at night for hours on end thinking of the possibilities, and was in a big hurry to become 'The Donald'.
It was killing me, and now I'm thinking about my age, my mortality and my family (just had a newborn son) and I'm thinking I've gotta get a move on here; I don't wanna retire at 65 or worse; be still working.
But, 7 years down the track the difference has been unbelievable, and the next 10 years are going to be spectacular knowing what I know now.
The first few years we bought 2 properties and were slow and it drove me mad; I started thinking that all the stuff I read about getting rich from Resi r/e was BS , but then we bought another property in year 3; this one was with a lot more knowledge and experience, then another a little later the same year, then another 15 months later, and so on. We probably could have gone a bit harder as we had a bit of equity to use, but we're thinking safety first.
So, the point is that within 10 years (maybe less), you can EASILY put yourself into a position to be financially free and retire if you want.
The question is; can you wait 10 years, can you set your mind on that goal? That is the patience factor.