I know how you feel, very frustrating when you think your making a good lay down and people flip their cards and you see something off the wall. 10 minute blinds would have you seeing very few hands especially if the people at the table need help with betting and counting their chips every time they act.

I have a monthly free poker tournament at my school that reminds me of your example. the approach that I would always take to the table was to try and pick out the passive players from the aggressive crazy ones. even though they all are going to make very odd moves. you can atleast pick the ones out that you may be able to push off hands, I think in a tournament like that you have to try and jam the pot when you know your good and take chances from time to time cause your implied odds are prolly really good if you make a hand.