Disclaimer: never use Brave browser, it's really bad. The CEO is an asshole, and they promote crypto and scams, while still showing their own ads. They also got caught sneakily adding affiliate codes to URLs. (https://www.spacebar.news/stop-using-brave-browser/)
Use firefox or any firefox derivative with ublock origin (yes, even on android)
Torrenting on TOR is actively discouraged for a reason. It will also be slow and exit nodes are probably in many blacklists, so you won't get good seeds.
If you want to torrent over a shadownet, use I2P. It allows torrenting (the Java I2P client even includes torrent software). It also has its own internal trackers. And due to the way it works, you can tunnel traffic for others without risk of getting flagged for something illegal or other people's torrents (which happens with many other TOR alternatives that allow torrenting).