Hello Jen, I took the IELTS exam a month ago here in England, and I tell you it can be difficult if one is not ready (especially the listening exam). Unless you want a band score of 7 or above, I'm not gonna suggest a review class because I think it can be done with a lot of practice online. Our sistah(s) from the forum suggested links (or better yet, google it) You only need to have a band score of 4 in Speaking and listening. Don't worry about the writing and reading bit so much, just concentrate on the s and l.
General or Academic, it doesn't really matter. I think the only difference is the writing and reading part in academic is harder than the general module.
I know you can do it sis, go for it!