I hear you. Not just in money but in time as well. Its very different when your situation is the cause of depression as loosing what little freetime and money you have to try and treat it is just adding fuel to the fire. Meditation. Buddhism as a philosophy, trying to get away from modern corp bs. Its easy to say and harder to do but there is a mindset. You want cheap and easy food treats and media so its easy to say hey its worth getting pick up food or paying for a streaming service. If you can realize how much nicer a clean environment is and how enjoyable it can be to make a nice meal from simple ingredients. Walks, preferably in nature, are great. If you get to a certain point you will despise the smartphone, the fast food, the monthly non necessities. OMG take a hot long bath if you have a tub. Embrace what you can.