Upvote for sympathy and understanding. The way the US treats the disabled is fucking criminal. My advice to you as someone who cares for two fully disabled family members is to live as much as you can under the radar. Income is very tricky, as you're basically forced to work under the table to survive and maintain your benefits - which are nowhere near the cost of living. Never let a savings account get above $2000 (split accounts if need be), and never tell your social workers more about your life than what they need to know to help you.

Regarding your landlord, use your disability to your advantage. There's very stringent laws where I am (California) that give additional eviction protections to the disabled - you may be able to use similar laws in your area to keep him off your back. This is one area where your social worker can help - ask specifically for rent assistance and mention constructive eviction given that he's threatening to kick you out over a two day delay in rent.