Could I ask what are the long, medium and short term goals for the group you're trying to organize?
Did you already identify key contradictions playing out in your community and are interested in trying to solve them? Or is this more like a group of people who think Lenin and the like were badass?
lack of discipline and being unmotivated sounds like lack of confidence issues or maybe hopelessness, loneliness etc. Honestly and this might sound silly, but you should really consider including simple activities like finding interesting places around the city based on pictures provided and ik there's a name for it, but I have never played it so I forgot, but a lot of shy people are extremely self-cautious and group walks with a goal can ease them in much better than awkwardly sitting around in a claustrophobic room.
You could even do a socialist theme around it, like imagine how cool it'd be to go on a hike and learn about Mao's long march f.ex At least I'd be willing to do that with you. In between the events there's analysis and theory hours. I'm not exactly sure why i haven't thought of this before, but I'm writing this down in my notes lol