Yeah I dont know a lot about the US too.
I unfortunately do know a lot about US history, but it's not great.
Since I'm not from US, I never had much interest in revolutionary war. I seen some videos on youtube about that period but it's all kinda foggy to me. Reason why I'm such a US civil war buff is because it was one of rare wars where there was a clear good and bad side. Of course everything is relative in this world but I feel like one side had heart and was right, and the other side was evil pretty much, in my opinion. And Lincoln is my favorite historical figure. Recommend watching movie Lincoln by Steven Speilberg.
Be careful where you source your Civil War history. Slavery was bad. There should be no argument there... but the American Civil War wasn't just about slavery. In fact, it really looks more and more like slavery was just a tool. Governments like to use wedge issues to define people. When you really look at things it gets a bit more grey.
Consider...
The US South wanted slaves. That's clear. Whether slaves were "treated well" or like garbage, they were still owned people and that's horrible. But... it isn't so much that the US North wanted to free slaves... rather, many in the north didn't want "their kind" anywhere in the north, and particularly with the westward expansion. The South wanted to takes slaves with them as the country built-out westward... the North didn't want slaves coming west at all. Lincoln was good at twisting things... he didn't want to free the slaves, but he was willing to do it to sway slaves and disrupt the South.
In theory, the US Constitution supports the notion of states leaving the Union if they want. When states joined the US in the beginning they had a right to secede if they wanted out. But in practice, once the Union happened, unless a majority of states wanted to bail, the minority of states who wanted to leave were always going to be met with resistance. Governments don't generally keep their word unless it suits them.
Meanwhile, our government supports civil wars in other countries all the time! Japan split off from China a long way back... same for Taiwan... North and South Korea split... we support this stuff all the time when we get an ally out of the deal. So our government isn't against civil wars and leaving unions except when it happened here.
Meanwhile... post Civil War in the US... Slaves were "freed" but what did that mean? No reparations back in the day. Actual slave owners weren't punished in any meaningful way... slaves were now free but largely excluded and oppressed for nearly another 100 years after the Civil War supposedly gained them their freedom. Meanwhile, the North also did some dirty tricks by putting freed slaves in positions of power in some places in the South just to rub salt in the wound... but didn't really support those freed slaves in those positions.
I mean... if the North in the US was the "right" side and all about freeing slaves as history tries to tell us... why did it take another 100 years to get close to equal rights in this country? Why were there no reparations back when you could have taken it directly from actual slave owners? Why did we continue to screw over Native Americans by land-grabs and pushing them around even as we claimed to be for freedom and fairness and such? Why do we still to this day exploit illegal immigration for cheap labor? Why do we exploit people in other countries for cheap labor in conditions we know to be routinely poor?
I could go on... The "good guys won the Civil War" history that our country tries to pain just doesn't hold up. The South were doing bad things, sure. No defense from me on that... but it's not like the North was the white hats either.