I'm currently getting a high school advanced math certificate (in Dutch). It's a good platform and it gives me the opportunity to ask teachers much more advance

I'm currently getting a high school advanced math certificate (in Dutch). It's a good platform and it gives me the opportunity to ask teachers much more advanced questions that relate to the material. I supplement my theory by watching 3Blue1Brown. Remembering double angle formula's is easy because of it :) So for me, I've learned a few things. I need: - Fellow students in a WhatsApp group - Teachers giving an answer in about a day on questions I have - Good exercises that give immediate feedback - 3Blue1Brown + Khan Academy giving better explanations I'm simply describing the nature of the course that I'm going through :P But I've also noticed that these things help.