The story is just too much, quite literally too much teenage drama for me to handle.
The series is too slow, many unnecessary scenes were not removed during editing, and the ending felt incomplete, including for the side story.
The side stories are too detailed all of a sudden and they just vanish after their part is done of increasing confusion and not having a proper ending before the series end.
The story is just too immature, both the base story and the additional script.
Another thing to notice here is the structure or order of the scenes, it could have been a bit better if the order of the scenes were changed to better present their story.

Acting:
One thing I noticed about Theo's character is too many hand gestures, especially during the start of the series.