I know i2p is a bit hard, but if you can figure out how to torrent you should be able to. I would recommend i2p+, which is a fork of i2p that is compatible with regular i2p but is easier to setup. Get the installer here: https://i2pplus.github.io/. If you are on linux, don't worry about it being an exe, it is java and you can run it with "java -jar file.exe." After that, you can open a browser and type localhost:7657. Set your proxy in your browser to localhost:4444, for the http and https settings. It may be different if you use chrome. Now you should be able to access tracker2.postman.i2p/. Don't forget a slash at the end. Your browser won't recognize it as a website without it. You will need the torrent client, i2psnark, which can be accessed on localhost:7657/i2psnark.
This may sound complicated, but the steps to install i2p boil down to: