Dear dev community

Dear, society and persons of interest, As a result of my confusion, overthinking and curiosity, I write this. I am seeking answers of a clear structure of everything that computer science offers, not just to know everything, but to have a clear formulated understanding of what to do. I prefer of it to be put as a diagram tree, if possible. Am convincingly not a begginer, since I have learnt html, CSS, JavaScript (a bit), java (in the process), networking (lightly), cyber security, jumping from one sector to another. There are still more to be mentioned. In my teenager mindset, I found the field interesting and so dived straight in to many things (almost half of what comp sci offers). It's to my humble plead that someone helps calm my anxiety, before I join a university and become stranded. From websites to chat bots, searching for an answers. May somebody help me, this is the only thing I have left of me satisfactory to my character and persona.