The amount you have left after taxes is a whole lot more than your whole salary would be if nobody paid any taxes.
Plus, you have a much better sense of security, more economic freedom, and less stress than you'd have in a society in which nobody paid taxes.
It is the government that prints and further provides the stability of the currency via which our economic transactions take place. It is the government that provides the roads, bridges, railways, and ports via which our resources traverse the country. It is the government that ensures the fair and standardized provision of utilities like water and electricity. It is the government that legally defines and enforces property rights via our police and military forces. It is the government that legally defines and enforces the concept of a corporation. It is the government that ensures that our workers receive at least some minimum standard of education. And so on and so forth. Taxation makes all this possible.
Imagine the state of the economy without all that. Imagine how poor you'd be.