Pretty much what the title says. I didn't hire any teachers or services (unless of course you count streaming* services. I used a lot of Spotify and Youtube). I've been studying the language by myself for years, with me being a native Portuguese speaker.
So yeah, I'm proud and wanted to share. But I also wanted to drop a frame of reference, because I couldn't find one myself.
First of all: in order to get the simulated exam to actually show up, it's not enough to enable pop-ups. You also have to allow intrusive ads.
Second: I was told the OnSet preparation on the website was just SLIGHTLY easier. I actually found the real test to be much harder.
On the one that's available online I got 54/80. On the real one I got 78/160.
So yeah, not even half. Still proud. And I hope this finds someone in the position I was. (I couldn't really find people comparing the real and simulated scores because most people I saw couldn't get the website to work!)