I've been languishing in my comfort zone. Continuing to do so will have terrible effects for me. To quote Marx, I "[have] become a monster, a huge mass of flesh and fat, and [am] barely capable of walking any more." Ever since the pandemic started I've become a terminally online antisocial weirdo who barely ever leaves my room, let alone the house.
Of course, in addition to the damage this does to my personal life, it also makes me non - potentially even counter - revolutionary. As someone who wants to be a communist instead of just some internet poisoned middle class dilettante, I don't know how I can be expected to jeopardize the comfort of my parasitic labor aristocratic class position when I can't even get out of my comfort zone enough to go outside, eat real food, and do even the barest minimum of light exercise.
It sounds like the main issue is overcoming depression or something very similar, so framing it in that less-moralizing way might help you take a constructive approach and also find resources on the internet.
I don't know what the climate is like where you are, but I think a really good way to start could be (weather permitting) to just take a walk around the block (or if you live in a rural area, walk a ~1/4 mile). If you want to keep going, you can, but if not then at least you reinforced the habit of going outside and doing something, and it will probably feel nice once you do it.