The bit is primarily a device for communication, secondarily a device for control. Ideally, it's the communication that gives the control but not all situations are "ideal."
The more power you put in the bit the louder the human can "talk." Long shanks add power; textured mouthpieces add power; varying the action of the bit can add power. But it's fair to ask "why do you need all that power?" In theory if the horse is well trained you can speak in a normal tone of voice and and the horse will hear and obey. When you are reduced to "shouting" it's time to step back and see what you're actually doing.
If you want a good head set then you need to ensure that the hind end of the horse is well engaged. That's because head set comes from the leg, not the hand. Increasing the power of the hand to get a better headset is departing from the basic principles of equine biomechanics. It's certainly quicker and easier to use some sort of "elevator" bit than to engage the hind end but that doesn't make it a good long term solution.
Have someone video you riding in a normal fashion. Then review the video and ask, "do I like what I see?" If the answer is "yes" then you're not broke; don't fix anything. If the answer is "no" then evaluate your discrepancies and address them.
Be advised that this is not something that people with inflated egos ought to do.
The lens does not lie nor does it care who you are or how much you paid for the horse or how many lessons you have (or have not) taken. It will show you what is and what is not.
Good luck in your program.