I'm the last person that should be giving advice, but I know a strategy that may help....
Before you look at (1) and (2) read the question and ask yourself, what would I need to know to solve this question?
For example, if it's an X-Y question and you have to solve, you'll need to know either X or Y, or X or Y + a relationship that exists b/w the two.
If it's a figure, draw it on your scratch paper. That forces you to think. For example, know that you need to know either a radius or a diameter to solve a circle problem.
I get a lot of DS wrong as well. Try guessing opposite to what you think.
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GQMouse, a victim of the GMAT.