Being a minor doesn’t make it okay for you to cyberbully, harass, threaten, and suicide bait people online.
When you’re called out for this behavior and try to use your age as an excuse for it—“um maybe telling someone to die is bad but i’m a minor so :)”—it isn’t the justification you think it is. Instead, it’s a clear example of why you’re not yet mature enough to be allowed unsupervised online access and why your parents or whoever is responsible for you needs to restrict that, sit you down and have a long talk about appropriate online behavior, and not give you your online access back until they’re sure you’re capable of behaving with a bit of decency and respect to other people online.