A Marxist politely told why I was wrong about almost everything and told me to read Marx.
It probably helps that I already had the same broad political goals, I just thought they could be achieved through liberalism and voting. They calmly and respectfully highlighted the contradictions in that way of thinking until I said, 'But how can we achieve any progress, then, if none of it is possible in capitalism?' 💡
A real lightbulb moment! Now read Marx, young redtea, he has the answers you're looking for.
So it took a while to get my head in the right space, where I needed to know the Marxist perspective on everything. Then I gorged on Marxist texts until I had re-educated myself.