losing interest?

Past few weeks haven't been feeling well, not that I'm feeling well now, but at least a bit better. Finding work life getting monotonous, wisdom that I've acquire from books and lecturers gone to waste, letting one of my poly lecturers down as he seems to have expect me to accomplish much..... and my late grandma......
Why am I still sticking onto a job with low pay, low recognition, with 'superiors' who do not listen to the workers who are doing the hands on, and like to employ the service of some consultants who will in turn question the workers who are doing the hands on. Wouldn't it be more logical to consult the employees directly? Does it really have to go through those consultants who does not really do anything but talk? Maybe boss find their words nicer to the ears? Coz they are 'professionals' who take thousands away from him each time, so making their words more valuable, while words from us, the cheap labours, are cheap too. Why is this boss hiring us to do the accounts and other admin stuffs when he himself is going through every nitty bitty grit? He could have done everything himself if he is so free to check everything. It would save him thousands of dollar every month. And perhaps with this few thousands that he save, he should go and take some accounting courses instead of accusing that his workers are doing the wrong things.
And what have I achieve in this 1 year? Not much, only keeping records of sales which will be used only when we check our accounts, digging out some old files and 'chasing' some customers for some money which have been owed for up to 5 years, the daily and monthly counting cash....... hmm anything else? Not quite the challenge when I was thinking of going into the world of stocks & derivatives. It was such a challenge during my poly days when we were playing the market. We had to maintain our concentration on the monitor for any price changes and any errors could cost us hundreds of thousands of dollars. Wherelse here, many times I have to find things to keep myself busy, updating some files, plotting some graphs to see trends(don't blame me, I'm an analyst by training), and when there's really nothing for me to do, I'll be playing some online games. Where on earth can you find a job that allows you to play games online during office hours?
Sometimes really feel like leaving this place and find something more challenging. But for a vision that I'm holding, I'll be sticking around, I'm no quitter when the going gets tough(in this case boring) . Ha, back to the houseflies catching game for now. Till I get more motivation. That's all for my grumbling now, thanks for listening in.