Organize with socialists, make use of mutual aid. Provides an IRL version of what you're seeking here- uou are in no way alone. This is how most people live and it is by systemic design.

There's a lot of power, and value, in making local irl connections so that when you need help or just to talk to people, you'll know that you have options. Also, some options take time, so getting on top of them now will pay dividends. Examples include food stamps and subsidized housing. Finally, lefties sometimes like to help each other get better jobs.

Of course I can also suggest ways to live cheaply, but there is a hard limit under this economic system and you might already be there.

Also please feel free to DM if you want to talk about anything.