I grow outdoors myself so I’d leave it out. It’s also huge so you would either cut it in half or something drastic.If I am understanding you right, if I was growing indoors I could control the amount of light and make the plant bud sooner but since it's outside I have to wait on mother nature to adjust lighting is that correct? If so, would it help or hurt the plant to move it to indoor lighting now? Fortunately in Oklahoma it does not start to get cold at night until October so should I just leave it where it is since it's doing so well?
But yes you do understand correctly. When grown inside every single variable is your responsibility. People grow in veg (the stage of growth when the plant puts on size and branches) untill they have the size plant they want or get the training they want done, then they change the lighting schedule to “flip” to flowering growth ( when the plant starts to make buds or male pollen junk). Those are the two main growth stages aside from germination and seedling.
It is a lot of fun to grow and you may want to look into getting a grow tent setup if you think controlling when the plant flowers sounds good to you. But for the current plant you have I’d personally just watch it and learn what you can. Then get some good seeds and put in some effort next grow, indoor or out. Your plant is incredible as it is and nature should take care of the light. You have a beautiful plant going.