I was scared once, too. Scared of heaps of things that I thought could go wrong. Now, when I sign a contract on an IP, my greatest fear is that my lucky pen will run out of ink.
The best way to learn is to get started!
Always invest with your head, not your heart.
You can buy a nice PPOR one day. But in the meantime, you can make great CG and live in a subsidised home by buying an IP in Adelaide.