I can only share my own experience. It may not work for you.
When my boy reached puberty he suddenly changed from my sweetheart to ninja warrior. After reading so many variations of how to train him I realised his hormones dictated that he must protect his ladies from all threats. Considering that my run is second only to fort knox (ok maybe not but I've had no predator problems YET) the poor boy had no idea what he was destined to protect his ladies from. The only non-chicken creature that invaded their space was me, therefore I must be the thing his hormones were driving him to chase away. For awhile I tried carrying him. Then I tried the *push him to the ground, pinch the back of his neck, push his head to the ground, hold him till he lays still, all in front of his ladies* method. I'm still not positive this contributed to my goal but I won't discount it. What did seem to be the final method was to ignore him, he doesn't exist. I started this by stopping moving forward when he would approach but never ever back away. I didn't look at him directly but I monitored his movements. If he jumped at me I stood my ground without flailing at him, as if there was nothing happening. Once he realised he was having no effect and that I wasn't accepting his challenge to fight he stopped. I'd move forward without trying to avoid him. If he doesn't exist there is nothing to avoid, so I moved right on through. Yes he would jump again and I'd repeat the process. It took awhile but eventually he gave up. Now I go in the run, he joins the ladies in greeting me at the door and follows me to where I scatter treats. Once in a rare blue moon he will "fluff" at me, a jump that makes no contact, as if to remind me he is the boss. Then he ignores me. I must add that it was probably after his first molt that he finally started ignoring me.
Now as for hubby...he still feels the need to protect himself by shooing my big boy away with hands or feet. Roopecca sees this as accepting the challenge. Hubby gets bit. He just doesn't get how I just walk through.
Here's the thing. Your cockerel is young and doesn't yet know what is needed but is driven to supply whatever it is. Once he learns you aren't on his list of things to protect the ladies from he should calm down. This won't be true for all cockerels, some are just mean. Give him a year from puberty onset to learn. You may have a wonderful rooster. If not you can have a wonderful Sunday dinner.
Good luck!