I want to improve my economic knowledge

what you need to do is to read a textbook on economics to learn the basic principle of economics, such as the law of demand, utility, elasticity. then keep watching economy new and thinking about it to bring up your interest on economics. the intuition of economics is very important for economists. and you should think things in the economics way

see economic is a practical subject ,you have to assume urself in every condition and then deliver,it is the system of production,distribution and consumption.As far as, improvement is concerned, u have refer various books available in additon to it u have to keep in touch with the newspaper and various other sources relating to economics.