Im in sortve the next stage from your situation since i finished school only a few months ago and am trying to find out what i may truly be wanting to do as a job for the rest of my life and honestly it all doesnt really change your in the same situation pretty much except you have more time on your hands to think about it all, and i can relate with how you feel with not seeing any point for most things and how alot of stuff doesnt feel real ive thought that way for quite alot of things for the last 3-4 years or so and i still am thinking that way honestly and i cant see myself changing the way i think about it and with your grades im not sure what kind of person you are with that like if your someone that WANTS or NEEDS to pass but i pretty much never cared about my grades to the disappointment of my parents so i just wouldnt study at all until the day before or night before the exams happened and if i passed then i passed i didnt worry about it but that was me others are different but dont get me wrong i still paid attention in class whenever i could.
honestly idk what im doing by replying to you saying all this and not even answering the question you asked but i guess here i am just dumping all this information out so i guess just do what you want whether its figure skating or creating your own webtoons since you will have the time to change to another career if it doesnt go well

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