You can create different types of study notes here, namely class notes, reading and sciencebee notes.
Class notes are notes that you capture from class lectures, discussions with friends, teachers and so on.
Reading notes are notes you want to capture based on reading different topics related to your topic.
ScienceBee notes are notes based on your reading different content on the ScienceBee.org website such as study guides, videos, flashcards, quizzes etc.
Recommendation: Eventually your goal must be to combine these notes into one and keep reducing the notes to the most important based on your level of understanding of the topic. You should plan on revising the study notes roughly 24 hours before taking up an exam or participating in a competition.