Follow your life mission. If you are the person who live by security then learning to invest and save is your best bet. However if you are not worry about your future but the present, spend the money on what you love most whether you love to help the poors, pay to attend your favourite classes, help your parents lessen their burden or anything that you wish for. Viewing from another angle, what you want by end of the day? Short or long term gratification or both?