I can't offer advice but I think all of us had those moments of epiphany where we realize something doesn't seem right or something has been left out or somebody is lying etc. For example, a whole lot of people came to realize a hard truth when WMDs proved to be an outright lie. What is disturbing is how over time, some of those people went right back to believing the same liars all over again. Lol.
It takes a lot to face facts sometimes. We all tend to rationalize and engage in denial of the truth when it suits us. I think of how Rush Limbaugh would rant about how drug addicts should be thrown in jail while he himself was a drug addict! Yet over time, he regained much of his audience again despite his hypocrisy. Conservative pundits who got it wrong about WMDs and the war in Iraq, went right on talking like they had never been wrong. They ended keeping their jobs no matter what. Americans don't have the narrative that we are regularly lied to by people in power. I think ( my personal opinion ) that it is mainly our mainstream media that ultimately is the cause of us being believing the lies and the liars. So if I could make a suggestion...
...focus on the media and the way they skew the facts and don't ask certain questions etc. It is the Press who creates the truth for most people. They don't necessarily create the facts but they tell us what those facts supposedly mean which is almost the same thing. The truth may be out there but that doesn't mean that we will hear about it in the mainstream press.
In America, the loss of our free press is killing our democracy. Would you have ever imagined back when we were young that billionaires and the wealthy elite would openly subvert democracy for their own gain like we see happening now? Or that corporations would be tracking us/survailing/watching us like they were a separate government and that we have no say in any of it?
If the press doesn't talk about it then it doesn't really exist for most Americans. You say that you want to do more than just expressing your frustration? I suggest you turn a critical eye towards our corporate owned press because the loss of a free press is obviously changing us but in all honesty the loss of an independent press is destroying us!