@Holiday20310401,
Huh, I hadn't realize you were in high school. Kudos for tricking me into thinking you're at university
Initially had a lot written before this, but realized that it wasn't helpful to my thesis, so I'll start with my thesis...excuse the crude way I just sort of jump into this, please

(By the way, just because I have a thesis here does not mean I have structure

Oh, and sorry so long).
STRUCTURE IS IMPORTANT. No one, including you I would wager, wants to read a paper which oscillates from specifics to generalities unless there is some underlying reason for doing so?and avoiding stating a thesis is not a good enough reason.
People who read academic writing are not often reading for pleasure?in fact, they rarely are. And usually, they're reading someone with the readability of Kant in German rather than something clear, concise and precise. Ever notice that scientific studies nearly all have the same format? It's formulaic writing at its most obvious, but it's because everyone either fancies themselves writers, or they don't fancy writing at all. That's no good for getting information out?so the scientific communities have certain norms they adhere to for the simplicity of all.
The liberal arts also have norms they adhere to and for the same reasons, the writers are just allowed a little more slack.
Back to original thought: Theses provide structure for you and your reader. Given that your reader is more important than even you (you might as well be writing a diary entry about bobby pins without your reader), and in this case your reader provides you a tangible benefit, it is in your best interests to write to your reader.
By the time one is in the home-stretch of writing a paper (for some, that's also the first draft, for others, it's several globally-changed drafts later), the thesis is already clear. That is, most people do no begin the writing process with a thesis, they begin with general ideas and slowly melt parts of those ideas away while other parts become more prominent. This crystallizes the main points.
What you seem to want to do is actually a method that most people use in writing a paper, but which is actually a part of the rough draft process. A bloody lot of people do just start out by word-vomiting onto the page and then cleaning it up as they discover what it is they're really trying to say. This is a great method for many people, especially people who are prone to rigmarole or are not sure what they want to focus on. Writing free flow will probably generate some great word-plays and ideas that hadn't even occurred to the person. It's an awesome method?but it's not the end of the writing process. If this is the method you want to use, then you need to realize that chances are, your paper has not simply written itself within your word-vomit. Chances are everything you need to structure your paper is there, but you need to extract it and chances are high that you will need to completely re-write the paper to fit the academic structure (again, there for everyone's benefit) and to make sure that your points flow well and any other literary stuffs you want to throw in.
This cleansing is also to make sure that you throw away everything from that word-vomit that is unnecessary to your paper. Teachers and professors absolutely hate fluff?and they can spot it. Whether they actually mention that you've been fluffy is a different story, but a person should not walk into a class expecting to pull the wool over a professor's eyes - chances are they've seen it all.
Free flow writing is to the art of writing as drunk philosophizing is to the art of philosophy. And how many musicians are also great philosophers??
I do have to give you credit: Word choice is a bit of a forte for you (a thesis which exploits the rest of the writing..? You make them sound so very very EVIL! ). Strengthen your structure, learn to crystallize what you really want the reader to walk away with (I usually take the approach of simply entertaining my profs?chances are they need something to make them smile and chances are I'm not going to present them with anything they've never heard before), and you could really turn out some brilliant writing. All of the fundamentals are there.
Side tangent: I'm of the opinion that it does both students and poor teachers and profs a complete disservice to only teach one form of writing structure. For example, teaching pyramid structure would tighten most people's writing to such an extent that they almost wouldn't recognize it, in many cases, and it would provide an insight for those who hate writing because they just don't get all of the nuances involved in it. /siderant
*edited for clarity.