Well, since kattie has already made a decision, I'll post some comments without feeling guilty of hijacking the thread.
Perhaps you could ask if someone would be willing to study with you, or perhaps there are others here who like you could use a group setting to learn and excel.
I've been toying with the idea of taking a course myself, although the idea is not far enough along that I've actually searched for something. It's not so much that I need structure or motivation or necessarily sequential lessons. For me, I just want a forum in which I could receive comments on my work, and offer comments on others' work....similar to, but a little more intensive than in the current "Show It Off" section of InkscapeForum.com.
I like the idea of a workshop, where a facilitator might present certains tasks to be completed with Inkscape and everyone would post what they had completed for each task, as well as comments on other pariticpants' work. OR if not a student-teacher scenario, just a group of people maybe, who take turns suggesting new tasks for the group to work on. And of course everyone would "critique" or offer constructive criticism to everyone else.
I've also been thinking of suggesting this for the InkscapeForums, that a new forum be added, for the single purpose of this type of workshop(s). I don't know if there might be a few different workshops for different levels of ability. (Even though I've been working to learn Inkscape for a couple of years, I still consider myself a beginner.) On the one hand, I can't imagine there might be enough interest to support say 3 groups of workshops -- beginner, intermediate, advanced. On the other hand, it's hard to imagine myself trying to survive among a group of advanced users, ie - one group comprised of many levels of ability. Or maybe advanced users don't need a workshop

? In my thoughts on this, the workshops would be ongoing, where once a week, once per month, or just whenever someone wants to do it, a task would be posted. Then everyone who is participating would post their image, and post comments on everyone else's work.
I guess I haven't been quite ready enough to write up a formal suggestion. So these comments are just "thoughts"

But I would definitely be interested in getting together with others in some scenario of this kind.