lol at the people who think investing is a waste or a get rich quick scheme
the average annualised market returns are around 8%, which far exceeds the interest from any bank account
invest only what you're willing to lose - i have about 20% of my cash invested in the stock market and the rest in bank accounts. that's a good medium for me.
my advice would be unless you really know what you're doing, invest in funds for long term growth rather than constantly buying and selling stocks yourself.