How do I set up TikTok parental controls on an iPhone?

I’m so worried about my child getting addicted to TikTok! What if they see something inappropriate? I’ve heard about these parental controls, but do they actually work? What if my child is super tech-savvy and just bypasses everything I set up? I don’t know what to do! I’ve heard about Screen Time and Family Pairing, but which one is better? What if one of them has a loophole my child will find? I’m just so anxious about all of this.