When you’re a liberal you have no idea how anything works because you have no system of analysis. You might have a vague idea for why things are the way they are but you have no idea how to fix the problem because you don’t understand what causes it. This can be pretty stressful, particularly when you get to try your “solutions” and they don’t pan out. Also because you’re an individualist participating in bourgeois democracy will make you feel powerless when you fight hard for something but still lose because you didn’t have the pull you thought you did.

When you become a Marxist everything starts to click and make sense. You see the structures you couldn’t see before, understand why things are the way they are, and have a general idea of how to keep out of the situation because you can properly analyze what is happening. It also doesn’t feel like everything rests on you, specifically, because you’re no longer an individualist operating on Great Man Theory with a delusion that you’ll be one of those Great Men (the liberal fetishism for voting is basically Great Man Theory). This relieves a lot of burdens on your psyche and make you more relaxed. If you’re still stressed it’s probably due to something else like having no revolutionary movement to join, being poor and struggling, etc.