I'm guessing that you have read the three articles that show a sample analysis, yes? Those show how one person might end up analyzing one specific question.
These are the articles:
http://www.manhattangmat.com/articles/GMATprep-SC.cfmhttp://www.manhattangmat.com/articles/CR-assumption.cfmhttp://www.manhattangmat.com/articles/a ... estion.cfmThe main article is this one:
http://www.manhattangmat.com/articles/a ... roblem.cfmUse the main article to do your analysis of problems - the main article contains the questions that you need to ask yourself. There isn't any one way to answer those questions; it just depends upon what you think of the problem and what your strengths and weaknesses are.
The three "example" articles show just
one possible set of responses that someone might give to those questions - just to give you an idea of how it works.
If you struggle to answer the questions in the main article, you can ask friends or your teacher, ask on the forums, etc. Ask others to help you analyze specific things. For example, if you can't figure out how to make an educated guess on a specific problem, you could post the problem on the forums (make sure to follow the rules!) and ask others how they would do it.
Breaking an SC question into parts of speech could be useful if you're having trouble with parts of speech on that question. It really depends upon the question itself and how you're struggling with the question. You need to think through your own thought process, using these questions, and ask yourself what you could / should have done differently and why. (And, again, if you struggle with this on a question, post in the forums or talk to your teacher and ask for help!)