I think the best thing for an individual to do is to learn meditation.... control your breathing, trying to slow down your thoughts and your ideas. You should eventually see that you can control what you think taking in only the good energy and rejecting the bad. Repeating positive mantra's is also good.

On a societal level we have been atomised making it very difficult to find communities to interact with but don't give up... you can engage in positive activities, you can choose your friends and positive activities to engage with :)