Communist parties meet the problems of the proletariat right where they are, and show them the alternative there. This has led to success in growing popularity towards communism where it has been tried.

We meet people where there is injustice and agitate them for action. We don’t hijack the movement or take charge of it as if we know better, we go in there and offer solutions. If we offer the right solutions, the affected people will follow them. And because we know what we’re talking about, this is how we show people the effectiveness of our praxis and get them results against their grievances. This is something that’s only achievable through a party and collective effort.

But practice is only one part of the contradiction, theory is the other. Without theory, there cannot be effective practice. Without practice, what good is theory? For theory, you should reasonably read everything you can get your hands on from Marx, Engels, Lenin, Stalin and Mao. There are other cool theorists like Gramsci, Luxemburg, Michael Parenti, Vijay Prashad… and many others I’m forgetting right now. I’m just name dropping them in case you weren’t aware of them and want to look them up.

I also recommend prolewiki https://en.prolewiki.org/wiki/ProleWiki:Main_page since, well, I’m on the team lol. But it’s a wiki that was made exactly for situations like yours.