Even if it were possible (which I doubt) I don't think it's a good idea to try and use ELU as a "structured learning tool".
The site itself has no overall "structure" that can meaningfully be mapped to a course of study. About all we've got are tags - which aren't always well-chosen in the first place, and certainly aren't consistently linked to appropriate questions.
I think it would be better to choose some particular introductory text and work through it, using ELU as a resource to help out whenever you come up against something that's not clear. Note that standard ELU "rules of engagement" would still require you to make some effort to resolve any issues by your own efforts before actually asking anything here.
I suppose you could always hang out in chat and ask others to correct you whenever you make some minor error. How well that works might depend on how interesting people find your contributions at the semantic level (and thus, how likely they are to read and respond), but I can't imagine anyone would tell you to "Go away!".