Yes, do ask!
Let’s say you will have no thesis in your paper. What’s next? Your paper will be a hotch-potch. How your audience will be able to trace the dynamics of your thoughts? How can they know what you are going to talk about and whether they are interested in your points? The only reply is your paper should come with the thesis statement ONE HUNDRED PERCENT!
You have to use the thesis statement, in which you will want to summarize your all main points. By the way, do not forget to restate your thesis at the end of the paper. Revisiting the thesis in the end will remind your readers about the main points of your argument.
Last but not the least, I don’t think that building an argument in an essay is actually possible without the thesis statement so again, one may not even have a doubt of whether he or she will need the thesis for their academic piece.
The sentence is truly problematic. The problem is that you are making an unnecessary interruption in the middle of the sentence.
I would make this sentence shorter and with the less complex structure as flows: Tommy flew his paper plane from his window and watched it descending to the earth.
Also, another aspect that should not be overlooked is that it is necessary to make sure that the title of your paper is not distracting, and you should be creative.
You know that nursery rhyme connected to the plague? You can incorporate it in your essay as a humanist view of the disease.
The fact that some parents still sing it to their children and have no clue about its origin is quite disturbing.
If you cannot quit any classes, then quit the extracurricular. Drop one class and take it next year when you are much more adapted to the workload you get.