Also, literally who cares. This isn't politics. Zoomers and millenials are very left-wing and that hasn't changer significantly in recent years. This isn't happening at scales that are shifting the political landscape. Idk why there is an obsession with this shit.
Like getting better at anything, you'd have a process of talking through what exactly you said/did and figuring out how to improve. Doing this in person is better than doing this online, but you can get a lot out of online conversations if you don't bullshit yourself or others.
Ideas like this work well with ideas like self-criticism.