Do you think it's wise to invest in stock market?

Yes! You just have to study stocks you're buying. It requires not so much of your time since it can be passively monitored. You can start with just 500php. I am with BPI trade, and planning to enrol in COL too. If you're lucky, you can get higher than banks' interests in your money through stock trading. Lastly, you must be prepared in taking risks since there's no guarantee in stock trading.