thanks alot everyone, but don't u think that it will maybe help me with my unit 3 sacs for chemistry and physics. btw. shud i go intensive workshop for english? thanks.
IMO with those courses (TSFX, NEAP etc), they offer a general overview of subject courses, rather than specific advice about how to tackle SACs and so on. It's really ultimately up to you - from what you've read on this thread, if you think it's worth the money - then by all means go. If you don't think it is worth it, then obviously don't go.
Presumably those "workshops" are in groups rather than 1-on-1 interaction. IMO you're better off finding a tutor for a subject like English, who can tailor to your needs and be more text-specific, rather than being in one whole group - where you might not get a lot out of it.