Your friend could have helped you by explaining widely to your comprehension about what he means by tracking which actually isn't tracking but the bitcoin blockchain an open ledger through which bitcoin address transactions can be viewed by anyone, but still on, the identity of the address owner remains anonymous.

Talk safest coin to use talk BTC to which monero is just a hype. But if you wish to try XMR you're free, probably when you test both you'll know which is better, which can't be any order than  bitcoin.