This is a tired subject. As Deng said, “Poverty is not socialism.” Do not fall into the Western Marxist trap of conflating the Christian veneration of poverty with communism. You live under capitalism, use it. If you have the finances to invest and secure a future for yourself, do it. It’s not a sin to have money and be a communist, it doesn’t make your political beliefs less “pure,” this kind of thinking is imbued with residual Christianity that should be rooted out. There’s a huge difference between “I work for Lockheed Martin and invest in oil companies” and “I buy index funds so maybe I can retire one day.”