Same here..I learn as I go and read more in the forums here and elsewhere.
Before, I just use cactus mix as it comes, then learning more, improving on it, and it also helped me seeing how they grow in other botanic gardens, how they set it up. I am learning now to pay attention as to which succulent truly loves more sun, or if they thrive better with more shade. But either way, both needs good drainage, so have been doing my own mix.
Learning more now which ones are Alpine succulents, desert succulents, tropical succulents and being aware of their specific needs.