Being yourself, is that an option?

Are we allowed to live for ourselves? I mean only for ourselves. No matter what you do or what you don't do, it all affects someone else more than if affects you. Basically, the bottom line is that we are forced to make decisions with not just our own self in mind but many other beings. We don't have a life neither do they. They live for us and we for them. When will a possibility arise when we are allowed to live for only "ME" or "YOU"...??