You're not doing something wrong, per se, but you're also not doing something right. You should set up Radarr according to the TRaSH guides. This way Radarr will score releases and grab the best out of what it can find, instead of just grabbing whatever it finds first. If you don't set up Radarr to score releases, you might as well be doing it manually because you'll get better results.
Looks like you use NZBgeek. Try one of the top results here, looks like they are the real thing, judging from the comments on the NZBs.
It's not P2P at all, and bittorrent doesn't give you any protection against anything. Usenet is also usually better when it comes to finding stuff, because public torrent sites drop like flies all the time. And Usenet downloads as fast as my connection can handle, without waiting for peers or needing to seed afterwards, and I don't even need a VPN if I don't want one.
Yes, we were all new to piracy at one point. But if you're going to be a smug little shit, then allow me to point out the difference between us is that you're still new to it, fledgling. You took five minutes typing shit out on your phone to find it? How adorable. It took me barely lifting a finger to click one button, and then I walked away while my media server took care of all the rest. Finding the best copy available on the net, downloading it, finding subtitles for it, and importing it into my media library so I can stream it to any device in the world. Movies, TV shows, ebooks, audiobooks, music, it doesn't matter. Anything I want, it's fully automated from start to finish. I don't even pirate anymore, because I'm not a peasant like you and I've got robot underlings to take care of shit like that for me.
Now, are we done stroking our own cocks, or do you want to swagger around some more like a teenager who hasn't gotten their braces off?