Here's the thing, you're right, you individually can't directly influence the current government because it is only answerable to a class you don't belong in, the capitalists. The only way to change things for the better is to organize with your fellow proletariat and change the class dynamics enough such that the government is answerable to your class, whether through a revolution or a credible threat of one. A good way to start is to read some theory, join a union at your workplace if there is one, and join a local socialist/communist party - they will have both the resources and the ideas on what to do next.