The individual has no power whatsoever in the dystopian world of 1984. The state of Oceania is a brutal, one-party dictatorship in which basic human rights are routinely and flagrantly disregarded. Every aspect of life is controlled by the Party, including the inner life of its citizens. The regime uses various methods of mind-control to keep the population firmly in check. It's not enough that the Party controls what people do and where they go, but also what they think. In Oceania, your life is not your own; it belongs entirely to the Party.
That said, the Proles enjoy some measure of freedom, relatively speaking. The regime doesn't regard the Proles as having much in the way of revolutionary potential, so they're pretty much left to their own devices. Unlike the rest of society, they don't have to have intrusive telescreens in their homes to keep them under surveillance. They can also engage in sex whenever they like and are free to get a divorce, a privilege denied the rest of society.
The Party cynically believes that if the Proles are kept in a state of ignorance, fed on a constant diet of cheap booze, mindless entertainment, and pornography, they won't get any ideas about overthrowing the regime. This may not sound like much of a life, but it's the nearest that anyone gets to freedom in this totalitarian society.