Don't despair, it is all a numbers game: the first cull of applicants is just to get it down to manageable numbers for interview and is therefore the hardest step ie. most applications come to an end at this point. Once you get over that first hurdle you have done the hardest bit. Logic would therefore dictate that you throw a huge amount of effort at passing this bit. Play different computer games for a few days before you do the application to sharpen your hand-eye co-ordination. The verbal reasoning tests are just logic problems. For maths revise a few area volume formulae and some conversions. Do you need these to fly a bus? Generally no but who cares, it is simply a hoop to jump through to get onto the next stage.
You'll find a few goons in any airline but in my experience the vast, vast majority of girls and guys here are really nice, friendly, sound and fun people.