Bullies
I don't have any bullies now. Never had many as a kid though, I was male, relatively tall, sturdy bone structure. People were more afraid of me than the other way around.
Some tried to bully me, few succeeded. Those that succeeded were always a lot older than me, like 16-18 when I was around 10-12. Those who failed were mostly idiots (excuse my language). I recall this short foreign kid who was very full of himself. He tried to challenge me, I punched him, he punched back. Then he left off and never heard from him again. Another kid tried to annoy me with this laserbeam toy by shining in my face. Not really bullying but eh. I walked up to him and stood in front of him and his friends. He was scared for his life and apologized. I really wanted to hurt him to set an example but figured it'd be in my interest not to cause any trouble.
Conclusion: always defend yourself. If you're not strong enough, get help. Bullies use fear as a weapon. If you're not afraid, they have nothing on you. Also, humans are often very stubborn. Which is a good thing when you're also smart. But it's a horrible thing when you're stupid as dirt. Those latter people won't listen to words. They won't even change their ways after you give them a major beating. They may say so because they're scared and weak but in their mind nothing changes. In that case the best thing you can do is beat them over and over until they get tired of trying or move onto someone else. Rarely will that process take very long, most bullies will give up right away. It's also a good idea to trigger their fear of death and traumatize them. Harsh, but they deserve it and it's effective. Just be careful not to cause visible physical injuries and not go farther than necessary to get the point across.
If you're not strong enough, be strong enough. Nothing else will cut it. Getting help is considered cowardly, and will only earn your attacker more sympathies. You'll be more viciously attacked when your helpers are not around. And that's the best-case scenario; very often, those in a position of authority won't take the bullying seriously, and may even laugh at you, calling you a wimp and a crybaby, and telling you to man up. It's understandable: we're hardwired not to want members in our tribe who will be a burden to the rest. Weak individuals are a burden, because others have to defend them instead of doing something else. You have to fight your own battles. If the enemy overpowers you and destroys you, tough luck---you were meant to be weeded out.
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The red lake has been forgotten. A dust devil stuns you long enough to shroud forever those last shards of wisdom. The breeze rocking this forlorn wasteland whispers in your ears, “Não resta mais que uma sombra”.
You're putting too much thought into it. Getting help is sensible, not cowardly. If there's 3 of them, you bring 3 friends and outnumber them. If there's only one of them and you can't win because he's stronger, you do the same thing if the option is there. You don't even need to 'win' most of the time. If they realize that bullying you means getting into a fight everytime they'll stop soon enough and find someone less resistant, even if they're stronger than you. That too is sensible. Besides they can't afford to go all out on you because they'll face legal consequences, meanwhile you can use force to defend yourself. That's why it usually stays with verbal bullying, threats, extortion etc. But it's up to you if you let that happen.