Your agro shifts sound like what we used to call "berserker shifts." I've experienced it a few times myself, though always without a trigger (more in-depth: sometimes my brain randomly decides to 'shut down' all higher functions and just let my bison mind take over for no apparent reason. I awakened as a bison in 2016 and it's happened maybe three times since then, so it's a very rare type of shift for me).

The good news is that you can learn to control these shifts. The bad news is, it's probably gonna take some time.

Lucky for you, iIt sounds like your shifts often have a trigger - when people taunt you, your chimp-side wants to go apeshit on them (sorry, I had to make the pun lol). The fact that there is a trigger makes it a lot easier for you to learn to control your berserker shifts than if they just happened at random.

The way I see it, you have two options: 1) Figure out a way to avoid your triggers, or 2) deliberately put yourself in situations that might trigger a shift.

Option 1 is the easiest, but it's also just a band-aid solution. It doesn't actually teach you how to control your shifts, all it does is lessen or prevent your shifts. Oftentimes you can walk away from a fight, but there will always, at some point, be triggering situations that are unavoidable. Which is why I actually recommend option 2.

Now, it sounds like you're pretty new to the community, and I'm guessing you're a tween/young teen, so I am NOT recommending you seek out intensely stressful situations. I'm gonna sound like a boring old parent here, but your brain doesn't have a good sense of risk assessment until you're in your 20s - god knows, I did some stupid ass shit when I was a teenager lol. Don't deliberately instigate schoolyard fights, it's only gonna cause you more pain. Trust me, I've been there.

Instead, start by imagining you're being taunted. Put down the phone/computer/tablet, sit on the floor of your room (or wherever you feel safe), close your eyes, and imagine someone calls you names or threatens you. Really play the scenario through in your mind until you feel yourself getting worked up. Do you feel your chimp-side rearing its head? Does your chimp brain want to fight? How does it make your body feel? Maybe you get a lot of restless energy when you imagine these scenarios; that's okay too.

This exercise is all about learning to recognize your own emotions, how they affect your body, and how your chimp-side feels. If you feel your mind get foggy, stop the exercise - stop imagining the scenario, and take slow, deep breaths until your mind feels clear again (and congrats if that happens! it means you've just controlled a minor shift!!).

When you feel like you can both induce a shift and stop a shift with this exercise, you can move on to the next step: Let the shift run its course. Induce a shift (in your room or another safe area) and don't immediately dial it back when your mind gets foggy. Instead, ride out the shift, like it's a wave and you're a surfer. Don't be at the mercy of your shifts - instead, you are the decision maker here, you are in control, you are the one making an active choice to release your inner animal.

There are more steps to controlling your shifts in triggering situations, but I think this post is long enough already. I hope I've given you something to work with :)

And I cannot stress this enough, do NOT instigate fights, that is not a part of this process, and it will not teach you how to control your shifts. I'm speaking from experience.